StorageWorks(TM) Solutions ------------------------------------------------------------ SW500-Series Cabinet Installation and User 's Guide Order Number: EK-SW500-IG. D01 This manual describes the concepts and procedures necessary to install, configure, and use StorageWorks SW500-series cabinets. Both mechanical cabinet configuration and power configuration are covered in this manual. The configuration and connection of SCSI-2 signal buses is covered in referenced StorageWorks documentation. Digital Equipment Corporation Maynard, Massachusetts ------------------------------------------------------------ June 1994 While Digital believes the information included in this publication is correct as of the date of publication, it is subject to change without notice. Digital Equipment Corporation makes no representations that the interconnection of its products in the manner described in this document will not infringe existing or future patent rights, nor do the descriptions contained in this document imply the granting of licenses to make, use, or sell equipment or software in accordance with the description. NOTE: This equipment generates, uses, and may emit radio frequency energy. The equipment has been type tested and found to comply with the limits for a Class A digital device persuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. Any changes or modifications made to this equipment may void the user 's authority to operate the equipment. Operation of this equipment in a residential area may cause interference in which case the user at his own expense will be required to take whatever measures may be required to correct the interference. © Digital Equipment Corporation 1993, 1994. Printed in the United States of America. All rights reserved. CI, Digital, HSJ, HSZ, StorageWorks, and the DIGITAL logo are trademarks of Digital Equipment Corporation. This document was prepared using VAX DOCUMENT Version 2.1. ------------------------------------------------------------ Contents Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii Manufacturer 's Declarations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi 1 How to Use This Manual 1.1 Cabinet Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 1.2 Locating the Information You Need . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 2 Introduction 2.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 2.2 Major Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4 2.3 Power Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7 2.3.1 Single-Cabinet Power Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7 2.3.2 Dual Shelf Power Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8 2.3.3 Dual-Cabinet Power Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9 2.4 Cabinet Cooling System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9 3 Site Preparation 3.1 General Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1 3.2 Equipment Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2 4 Unpacking and Installation 4.1 Unpacking the Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1 4.2 Removing the Cabinet from the Pallet . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4 4.3 Configuring the Cabinet Rack Space . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7 4.4 Placing the Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7 4.5 Leveling the Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8 4.6 Installing the Skirt Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8 4.7 Inspecting the Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9 4.8 Powering the Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10 5 Configuring SW500 Storage-Only Cabinets 5.1 Cabinet Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1 5.1.1 Shelf Locations Without Tape Drives . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2 5.1.2 TZ8x7-Series Tape Drive/Shelf Locations . . . . . . . . . . . . . . . . . . . . . . . 5-2 5.2 Filler and Air Separation Panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3 5.3 Power Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4 5.4 Signal Cabling and Routing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4 5.4.1 Shelf SCSI-2 Cable Selection and Connection . . . . . . . . . . . . . . . . . . . 5-4 iii 5.4.2 SCSI-2 Cable Routing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4 5.4.3 General Cable Routing Rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4 6 Configuring SW500 Controller/Storage Cabinets 6.1 HS-Family Controllers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1 6.2 Cabinet Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2 6.2.1 Shelf Locations Without Tape Drives . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2 6.2.2 TZ8x7-Series Tape Drive/Shelf Locations . . . . . . . . . . . . . . . . . . . . . . . 6-3 6.3 Filler and Air Separation Panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4 6.4 Power Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5 6.5 Host CI Signal Cabling and Routing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5 6.5.1 CI Bulkhead Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5 6.5.2 Internal CI Cable Routing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5 6.5.3 Host-to-CI Bulkhead Cable Routing . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7 6.6 Host SCSI-2 Signal Cabling and Routing . . . . . . . . . . . . . . . . . . . . . . . . . 6-7 6.7 Shelf SCSI-2 Signal Cabling and Routing . . . . . . . . . . . . . . . . . . . . . . . . . 6-8 6.7.1 Shelf SCSI-2 Cable Selection and Connection . . . . . . . . . . . . . . . . . . . 6-9 6.7.2 SCSI-2 Cable Routing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-9 6.8 General Signal Cable Routing Rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-9 7 Installing StorageWorks Shelves 7.1 General Shelf Mounting Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1 7.2 Shelf Bracket Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2 7.2.1 Screw-Mounted Shelf Brackets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2 7.2.2 Tab-Mounted Shelf Brackets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2 7.3 Shelf Bracket Kit Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2 7.4 Cabinet Preparation and Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3 7.5 Accessing the Cabinet Rack Space . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3 7.5.1 Removing the Exterior Cabinet Panels . . . . . . . . . . . . . . . . . . . . . . . . 7-3 7.6 Installing the Shelves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-5 7.6.1 Installing Shelves With Screw Mounts . . . . . . . . . . . . . . . . . . . . . . . . . 7-5 7.6.2 Installing Shelves with Tab Mounts . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-9 7.7 Air Separation Panel Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-13 7.7.1 Installing the Front Air Separation Panel . . . . . . . . . . . . . . . . . . . . . . 7-13 7.7.2 Installing the Rear Air Separation Panel . . . . . . . . . . . . . . . . . . . . . . . 7-14 7.7.2.1 Rear Air Separation Panel Installation--Opening Above the Upper-Most Shelf . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-14 7.7.2.2 Rear Air Separation Panel Installation--CDU A Above the Upper-Most Shelf . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-14 7.8 Installing Exterior Cabinet Panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-15 8 Installing TZ8x7-Series Tape Drives 8.1 General Installation Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1 8.2 Accessing the Cabinet Rack Space . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2 8.3 Chassis Rail Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-4 8.3.1 Chassis Rail Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-4 8.3.2 Right Position Chassis Rail Assembly Installation . . . . . . . . . . . . . . . . 8-5 8.3.3 Left Position Chassis Rail Assembly Installation . . . . . . . . . . . . . . . . . 8-7 8.4 Mounting the TZ8x7-Series Tape Drive Enclosure . . . . . . . . . . . . . . . . . . . 8-10 8.5 Supplying AC Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-13 8.6 SCSI-2 Signal Cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-13 iv 8.7 Installing the Cabinet Door Tape Bezel Kit . . . . . . . . . . . . . . . . . . . . . . . . 8-13 8.8 Reinstalling Exterior Cabinet Panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-13 9 Power Configuration 9.1 General Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1 9.2 Cable Distribution Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1 9.3 Utility Power Cord . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2 9.4 Single CDU Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2 9.4.1 Single Cabinet Power Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2 9.4.2 Dual-Shelf Power Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2 9.5 Dual-Cabinet Power Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-3 StorageWorks Glossary Index Figures 2-1 SW500-Series Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 2-2 Cabinet Major Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5 2-3 TZ8x7-Series Tape Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6 2-4 Single-Cabinet Power Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7 2-5 Dual-Shelf Power Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8 2-6 Dual-Cabinet Power Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9 3-1 Minimum Installation Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2 4-1 Shipping Container Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3 4-2 Shipping Pallet Ramp Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5 4-3 Shipping Bolts and Brackets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6 4-4 Removing the Cabinet from the Pallet . . . . . . . . . . . . . . . . . . . . . . . . . 4-7 4-5 Leveler Foot Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8 4-6 Cabinet Skirt Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9 5-1 SW500 Storage-only Cabinet Shelf Locations Without Tape Drives . . . 5-2 5-2 SW500 Storage-only Cabinet Shelf and Tape Drive Locations . . . . . . 5-3 6-1 SW500 Controller/Storage Cabinet Shelf Locations Without Tape Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3 6-2 SW500 Controller/Storage Cabinet Shelf and Tape Drive Locations . . 6-4 6-3 CI Bulkhead and Internal CI Cable Installation . . . . . . . . . . . . . . . . . 6-6 7-1 Exterior Cabinet Panel Removal and Installation . . . . . . . . . . . . . . . . 7-4 7-2 Horizontal Shelf Bracket Installation . . . . . . . . . . . . . . . . . . . . . . . . . 7-7 7-3 Rear Shelf Bracket Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-8 7-4 Front Shelf Bracket Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-11 7-5 Rear Shelf Bracket Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-12 7-6 Front Air Separation Panel Installation . . . . . . . . . . . . . . . . . . . . . . . . 7-13 7-7 Rear Air Separation Panel Installation--Empty Shelf Position Above Upper-Most Shelf . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-14 7-8 Rear Air Separation Panel Installation--CDU A Installed Above Upper-Most Shelf . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-15 8-1 TZ8x7-Series Tape Drive Installation . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2 v 8-2 Cabinet Side Panel Removal and Installation . . . . . . . . . . . . . . . . . . . 8-3 8-3 Chassis Rail Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-5 8-4 Right Position Chassis Rail Assembly Installation . . . . . . . . . . . . . . . . 8-6 8-5 Left Position Chassis Rail Assembly Installation . . . . . . . . . . . . . . . . . 8-8 8-6 Right Position Tape Drive Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . 8-11 8-7 Left Position Tape Drive Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-12 8-8 TZ8x7-Series Tape Drive Rear Panel . . . . . . . . . . . . . . . . . . . . . . . . . . 8-14 9-1 CDU Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-4 Tables 1 StorageWorks Related Documentation . . . . . . . . . . . . . . . . . . . . . . . . viii 2 Acoustics--Preliminary Declared Values per ISO 9296 and ISO 7779 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xii 3 Schallemissionswerte--Vorläufige Werteangaben nach ISO 9296 und ISO 7779/DIN EN27779 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiii 1-1 Information and Procedure Locations . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 2-1 SW500-Series Cabinet Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3 4-1 Thermal Stabilization Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2 6-1 SW500 Controller/Storage Cabinet SCSI-2 Cable Lengths . . . . . . . . . 6-9 7-1 SW500 Metric Shelf Screw-Mounted Bracket Kit Parts List . . . . . . . . 7-2 7-2 SW500 Metric Shelf Tab-Mounted Bracket Kit Parts List . . . . . . . . . . 7-3 7-3 Shelf Stop Bracket Positions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-6 7-4 Shelf Locking Bracket Part Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . 7-6 7-5 Horizontal Shelf Stop Bracket Positions . . . . . . . . . . . . . . . . . . . . . . . 7-9 7-6 Horizontal Shelf Locking Bracket Part Numbers . . . . . . . . . . . . . . . . . 7-10 9-1 CDU Power Cable Variations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2 9-2 SW500 Cabinet Dual Power Option Kit Parts List . . . . . . . . . . . . . . . 9-3 vi ------------------------------------------------------------ Preface This document presents the concepts and procedures necessary to install, configure, and use StorageWorks(TM) SW500-series cabinets. Both mechanical cabinet configuration and power configuration are covered in this manual. Configuring and connecting SCSI-2 signal buses is covered in referenced StorageWorks documentation. Intended Audience This manual is intended for use by customers and Digital Multivendor Customer Services engineers responsible for installing, configuring, and using StorageWorks SW500-series cabinets. ------------------------------------------------------------ Note ------------------------------------------------------------ The procedures described in this guide are to be performed only by qualified service personnel. ------------------------------------------------------------ Structure This manual is organized as follows: Chapter 1 Discusses how to use this manual to configure an SW500-series cabinet storage subsystem. Chapter 2 Provides an overview of the SW500-series cabinet, a description of its major components, and a discussion of the power options available for it. Chapter 3 Contains site preparation information. Chapter 4 Describes the unpacking and installation of SW500-series cabinets. Chapter 5 Describes the configuration of SW500-series storage-only cabinets. Chapter 6 Describes the configuration of SW500 controller/storage cabinets. Chapter 7 Describes the mounting of StorageWorks shelves within SW500-series cabinets. Chapter 8 Describes the mounting of TZ8x7-series tape drives within SW500- series cabinets. Chapter 9 Describes the configuration of power within SW500-series cabinets. Glossary The Glossary defines the acronyms and specialized terms used in the StorageWorks environment. vii Related Documents Table 1 lists the StorageWorks-related user documents organized by use, system, or product. Table 1 StorageWorks Related Documentation ------------------------------------------------------------ Document Title Order Number ------------------------------------------------------------ StorageWorks Primary Publications ------------------------------------------------------------ StorageWorks Solutions Configuration Guide EK-BA350-CG StorageWorks Solutions Shelf and SBB User 's Guide EK-BA350-UG ------------------------------------------------------------ StorageWorks RAID Array 110 Subsystem ------------------------------------------------------------ DEC RAID Utilities User 's Guide EK-DECRA-UG HSZ10-AA Controller Site Preparation Guide EK-HSZ10-IN StorageWorks Expansion Storage Pedestal User 's Guide EK-SMCPA-UG StorageWorks RAID Array 110 Subsystem User 's Guide EK-SM2CA-UG StorageWorks RAID Array 110 Utility for MS-DOS User 's Guide AA-Q0N5A-TE StorageWorks RAID Array 110 Utility for Novell NetWare User 's Guide AA-Q0N4A-TE StorageWorks RAID Array 110 Utility for SCO UNIX User 's Guide AA-Q0N6A-TE ------------------------------------------------------------ StorageWorks Array Controller 140-Series ------------------------------------------------------------ StorageWorks Array Controller HS Family of Array Controllers User 's Guide EK-HSFAM-UG StorageWorks BA350-MA Controller Shelf User 's Guide EK-350MA-UG ------------------------------------------------------------ DECraid+ Rackmount Storage Subsystem and HSC Intelligent I/O Servers ------------------------------------------------------------ HSC Controller User 's Guide AA-PFSQA-TK HSC Controller Installation Manual EK-HSCMN-IN (continued on next page) viii Table 1 (Cont.) StorageWorks Related Documentation ------------------------------------------------------------ Document Title Order Number ------------------------------------------------------------ ------------------------------------------------------------ StorageWorks Enclosures ------------------------------------------------------------ BA35X-VA Vertical Mounting Kit User 's Guide EK-350SV-UG InfoServer 1000 Installation and Owner 's Guide EK-INFLC-OM StorageWorks Solutions Desktop Expansion Unit User 's Guide EK-BA353-UG StorageWorks Solutions SW500 and SW800 Cabinet Metric Shelf Bracket Kit Installation Guide EK-35XRD-IG StorageWorks Solutions HSR95-Series Cabinet Metric Shelf Bracket Kit Installation Guide EK-35XRD-IG StorageWorks RETMA Shelf Rail Kit Installation Guide EK-35XRB-IG StorageWorks Solutions SW500-Series Cabinet Installation and User 's Guide EK-SW500-IG StorageWorks Solutions SW500-Series Cabinet Cable Distribution Unit Installation Guide EK-SW5CU-IG StorageWorks Solutions SW800-Series Data Center Cabinet Cable Distribution Unit Installation Guide EK-SWCDU-IS StorageWorks Solutions SW800-Series Data Center Cabinet Installation and User 's Guide EK-SW800-IG Instructions for Installation of the Tape Bezel Kit on SF400 Series Cabinets+ EK-SFTBK-IS ------------------------------------------------------------ Storage Devices ------------------------------------------------------------ SCSI Signal Converter DWZZA-AA EK-DWZZA-SV SCSI Signal Converter DWZZA-MA EK-DWZZM-SV SCSI Signal Converter DWZZA-VA EK-DWZAA-SV StorageWorks Building Blocks User 's Guide EK-SBB35-UG StorageWorks Solutions 3½-Inch Storage Device Installation Guide EK-MC350-IG StorageWorks Solutions 5¼-Inch Storage Device Installation Guide EK-MC525-IG TZ86-VA Cartridge Tape Drive Device Addresses EK-TZ86A-UG TZ87-VA Cartridge Tape Drive Device Addresses EK-TZ87A-DA Storageworks Solutions TZ8x7-Series Tape Drive SCSI Bus Configuration and Installation Guide EK-TZ8X7-IG ------------------------------------------------------------ General Reference Publications ------------------------------------------------------------ Digital Systems and Options Catalog + Small Computer System Interface, An Overview EK-SCSIS-OV Small Computer System Interface, A Developer 's Guide EK-SCSIS-DK ------------------------------------------------------------ + Available from your Digital account representative. + Also applies to StorageWorks cabinets. ------------------------------------------------------------ ix Documentation Conventions The following conventions are used in this manual: boldface type Boldface type indicates the first instance of terms being defined in text, in the glossary, or both. italic type Italic type indicates emphasis and complete manual titles. In the glossary, italic type also is used to indicate cross-references. x ------------------------------------------------------------ Manufacturer 's Declarations Following are manufacturer 's declarations applicable to StorageWorks SW500-series cabinets: ------------------------------------------------------------ CAUTION ------------------------------------------------------------ This is a class A product. In a domestic environment, this product may cause radio interference, in which case the user may be required to take adequate measures. ------------------------------------------------------------ ------------------------------------------------------------ ACHTUNG ! ------------------------------------------------------------ Dieses ist ein Gerät der Funkstörgrenzwertklasse A. In Wohnbereichen können bei Betrieb dieses Gerätes Rundfunkstörungen auftreten, in welchen Fällen die Benutzer für entsprechende Gegenmaßnahmen verantwortlich sind. ------------------------------------------------------------ ------------------------------------------------------------ ATTENTION ! ------------------------------------------------------------ Ceci est un produit de Classe A. Dans un environment domestique, ce produit risque de créer des interférences radiélectriques, il appartiendra alors à l’utilisateur de prendre les mesures spécifiques appropriées. ------------------------------------------------------------ ------------------------------------------------------------ Note ------------------------------------------------------------ The equipment described in this manual is listed by the Underwriters Laboratories Incorporated and bears the UL Listing mark. SW500-series cabinets are also certified by the Canadian Standards Association and TÜV Product Service GmbH and bear both the CSA certification and TÜV GS marks. The equipment also complies with the requirements for CE-mark Class A. ------------------------------------------------------------ xi ------------------------------------------------------------ Note ------------------------------------------------------------ Das in diesem Manual beschriebene Gerät wurde von TÜV Produkt Service GmbH auf Sicherheit geprüft and trägt das GS Zeichen. Bitte beachten Sie, daß Eingriffe in das Gerät, Reparaturen oder der Einbau von Erweiterungen nur von Digital Personal erfolgen darf, da sonst die GS Zulassung ungültig wird. Die Zulassung wird auch ungültig, wenn nicht von Digital qualifizierte Speichererweiterungen eingebaut werden. Das Gerät muß so aufgestellt werden, daß die Steckdose frei zugänglich ist. ------------------------------------------------------------ Table 2 Acoustics--Preliminary Declared Values per ISO 9296 and ISO 7779 ------------------------------------------------------------ Sound Power Level L W A d , B+ ------------------------------------------------------------ Sound Pressure Level L pA m , dBA (Bystander Positions) ------------------------------------------------------------ Product+ Idle Operate Idle Operate ------------------------------------------------------------ SW500 cabinet only 0.0 0.0 0.0 0.0 SW500 with 2 BA350-MA shelves, each containing 2 HSJ40(TM) controllers and 8 BA350-SA shelves, each containing 6 RZ26-VA disk drives 7.0 7.0 50.0 51.0 ------------------------------------------------------------ Per device when installed in SW500 ------------------------------------------------------------ BA350-SA shelf containing 6 RZ26-VA disk drives 5.7 5.7 39 39 BA350-MA shelf with 2 HSJ40 controllers 5.6 5.6 39 39 ------------------------------------------------------------ Sound Power Level L W Ad , B+ ------------------------------------------------------------ Sound Pressure Level L pAm , dBA (Operator Positions) ------------------------------------------------------------ Product+ Idle Operate Idle Operate ------------------------------------------------------------ SW500 cabinet only 0.0 0.0 0.0 0.0 SW500 with 2 BA350-MA shelves, each containing 2 HSJ40 controllers and 8 BA350-SA shelves, each containing 6 RZ26-VA disk drives 7.0 7.0 50.0 51.0 ------------------------------------------------------------ Per device when installed in SW500 ------------------------------------------------------------ BA350-SA shelf containing 6 RZ26-VA disk drives 5.8 5.8 46 46 BA350-MA shelf with 2 HSJ40 controllers 5.7 5.7 46 46 ------------------------------------------------------------ + Current values for specific configurations are available from Digital representatives. + 1 B = 10 dBA. ------------------------------------------------------------ ------------------------------------------------------------ Note ------------------------------------------------------------ Table 3 is a translation of the English language specifications in Table 2 into the German language. ------------------------------------------------------------ xii Table 3 Schallemissionswerte--Vorläufige Werteangaben nach ISO 9296 und ISO 7779/DIN EN27779 ------------------------------------------------------------ Schalleistungspegel L W A d , B+ ------------------------------------------------------------ Schalldruckpegel L pA m , dBA (Beistehende Position) ------------------------------------------------------------ Gerät+ Leerlauf Betrieb Leerlauf Betrieb ------------------------------------------------------------ nur SW500 Kabinett 0,0 0,0 0,0 0,0 SW500 mit 2 BA350-MA shelves, jedes bestückt mit 2 HSJ40 controllers und 8 BA350-SA shelves, jedes bestückt mit 6 RZ26-VA disk drives 7,0 7,0 50,0 51,0 ------------------------------------------------------------ Pro Gerät installiert im SW500 ------------------------------------------------------------ BA350-SA shelf mit 6 RZ26-VA disk drives 5,7 5,7 39 39 BA350-MA shelf mit 2 HSJ40 controllers 5,6 5,6 39 39 ------------------------------------------------------------ Schalleistungspegel L W Ad , B+ ------------------------------------------------------------ Schalldruckpegel L pAm , dBA (Bediener Position) ------------------------------------------------------------ Gerät+ Leerlauf Betrieb Leerlauf Betrieb ------------------------------------------------------------ nur SW500 Kabinett 0,0 0,0 0,0 0,0 SW500 mit 2 BA350-MA shelves, jedes bestükt mit 2 HSJ40 controllers und 8 BA350-SA shelves, jedes bestükt mit 6 RZ26-VA disk drives 7,0 7,0 50,0 51,0 ------------------------------------------------------------ Pro Gerät installiert im SW500 ------------------------------------------------------------ BA350-SA shelf mit 6 RZ26-VA disk drives 5,8 5,8 46 46 BA350-MA shelf mit 2 HSJ40 controllers 5,7 5,7 46 46 ------------------------------------------------------------ + Aktuelle Werte für spezielle Ausrüstungsstufen sind über die Digital Equipment Vertretungen erhältlich. + 1 B = 10 dBA. ------------------------------------------------------------ xiii 1 ------------------------------------------------------------ How to Use This Manual This chapter shows you how to use the information in this manual to configure an SW500-series cabinet storage subsystem. 1.1 Cabinet Configuration Following is the sequence of steps that you must follow to set up a storage subsystem in an SW500-series cabinet: 1. Understanding cabinet concepts--To follow the procedures in this manual, you should be familiar with the components and nomenclature used with the SW500-series cabinet family. 2. Site preparation--You must ready the site for the installation of the cabinet. 3. Unpacking--You must unpack the cabinet and set it in place at the site. 4. Cabinet layout--You must determine the layout of the cabinet's shelves, tape units, and power cabling. 5. Component installation--You must install the cabinet's shelves and tape units in accordance with the layout. 6. Power cabling routing and installation--You must install and route the cabinet's power cabling in accordance with the layout. 7. SCSI bus design and connection--You must design and connect the cabinet's SCSI bus signal cabling. 8. SCSI bus cable routing--You must properly route the cabinet's SCSI bus signal cabling, as it is installed. 1.2 Locating the Information You Need This manual contains the information and procedures to support the cabinet configuration process. The design and connection of SCSI signal buses, however, is covered in referenced documentation. Table 1-1 shows each configuration step, where you can find the information, and procedures you need to complete the step. How to Use This Manual 1-1 Table 1-1 Information and Procedure Locations ------------------------------------------------------------ Configuration Step Location of Supporting Information Comments ------------------------------------------------------------ Understanding cabinet concepts Chapter 2, Introduction Site preparation Chapter 3, Site Preparation Unpacking Chapter 4, Unpacking and Installation Cabinet layout Chapter 5, Configuring SW500 Storage- Only Cabinets Chapter 6, Configuring SW500 Controller/Storage Cabinets To lay out storage-only cabinets To lay out cabinets containing both controllers and storage Component installation StorageWorks shelves TZ8x7 tape drives Chapter 7, Installing StorageWorks Shelves Chapter 8, Installing TZ8x7-Series Tape Drives Power cabling routing and installation Chapter 5, Configuring SW500 Storage- Only Cabinets Chapter 6, Configuring SW500 Controller/Storage Cabinets For storage-only cabinets For cabinets containing both controllers and storage SCSI bus design and connection+ StorageWorks Solutions Family Configuration Guide StorageWorks Solutions SBB and Shelf User 's Guide StorageWorks Array Controller HS Family of Array Controllers User 's Guide StorageWorks BA350-MA Controller Shelf User 's Guide StorageWorks RAID Array 110 Subsystems User 's Guide Storage Solutions TZ8x7-Series Tape Drive SCSI Bus Configuration and Installation Guide For BA350-Sx storage shelves For BA350-Mx controller/storage shelves For BA350-Ex controller/storage shelves (major component of the RAID Array 110 subsystem) For TZ8x7-series tape drives SCSI bus cable routing Chapter 5, Configuring SW500 Storage- Only Cabinets Chapter 6, Configuring SW500 Controller/Storage Cabinets Routing for storage-only cabinets For cabinets containing both controllers and storage ------------------------------------------------------------ +The procedures involved in SCSI bus design and connection are specific to the components being bused together. See the referenced documentation for detailed information on SCSI bus design and connection. ------------------------------------------------------------ 1-2 How to Use This Manual 2 ------------------------------------------------------------ Introduction This chapter presents an overview, a description of major components, and a discussion of power options for StorageWorks SW500-series cabinets. 2.1 Overview The SW500-series cabinet, shown in Figure 2-1, is a member of Digital's StorageWorks family of modular enclosures. The 600 mm-wide cabinet provides an attractive enclosure with rackmount space and primary power for up to 10 StorageWorks shelves of different types. Up to six StorageWorks shelves can be used in conjunction with two TZ8x7-series tape drives. The cabinet can accommodate both data storage and controller/data storage combinations. The cabinet and its StorageWorks shelves can be configured with dual ac power capability to provide redundant power supplies. SW500-series cabinets offer a versatile, modular solution to array storage problems. You may use them in both open-office and data center applications. You may order the cabinet in a variety of preconfigured subsystem versions with such options as mixed storage device types and storage, controller, or power redundancy. You also can order custom configurations to meet your specific needs. The modularity of the cabinet and its components offers efficient and cost-effective upgrade paths. Specifications for SW500-series cabinets are shown in Table 2-1. Introduction 2-1 Figure 2-1 SW500-Series Cabinet 2-2 Introduction Table 2-1 SW500-Series Cabinet Specifications ------------------------------------------------------------ Characteristic Specification ------------------------------------------------------------ Dimensions (nominal) 110.00 cm (43.31 in) height, 60.00 cm (23.62 in) width, 87.25 cm (34.35 in) depth Weight Empty cabinet (only 1 CDU installed) Empty cabinet with shipping packaging Maximum configuration (2 BA350- MA shelves, 8 BA350-SA shelves with 6 RZ26 disk drives in each, 2 CDUs) 140 kg (309 lb) 160 kg (353 lb) 290 kg (639 lb) Agency compliance FCC, UL, CSA, TÜV, and CE-mark Electrical rating SW5xx-AC 100-120 volts, 60 Hz, single phase, 20 amperes SW5xx-AD 100-120/200-240 volts, 50/60 Hz, single phase, 20/16 amperes Temperature +10°C to +40°C (+50°F to +95°F) Reduce rating by 1.8°C for each 1000 m altitude (1.0°F for each 1000 ft altitude) Humidity 10 to 85% at maximum wet bulb temperature of +32°C (+90°F) and minimum dew point of +2°C (+36°F) ------------------------------------------------------------ Recommended Environmental Limits+ ------------------------------------------------------------ Operating environment Temperature 18°C to 24°C (64.4°F to 75.2°F) with an average rate of change of 3°C/hour maximum and a step change of 3°C or less Relative humidity 40 to 60% (noncondensing) with a step change of 10% or less (noncondensing) Altitude Up to 2400 m (8000 ft) Air quality (maximum particle count) Not to exceed 500,000 particles per cubic foot of air at a size of 0.5 micron or larger Nonoperating environment Temperature -40°C to +66°C (-40°F to +151°F) Relative humidity 10 to 80% noncondensing Altitude 4900 m (16,000 ft) ------------------------------------------------------------ +These limits are for optimum equipment performance and reliability. ------------------------------------------------------------ Introduction 2-3 2.2 Major Components The major components of the SW500-series cabinet are shown in Figures 2-2 and 2-3 and are as follows: · Cabinet--The cabinet is a general-purpose enclosure that provides rack- mount capability for standard 44.5 cm (17.5 inch) wide components. The cabinet uses a standard metric rackmount bolt pattern with holes on 25-mm (.98-inch) centers. Hinged front and rear doors and removable side panels allow easy access to the cabinet interior. Casters and leveler feet are provided to facilitate placement of the cabinet, and base trim skirts are provided to enhance its appearance. The cabinet provides six storage shelf positions in the front and four storage shelf positions in the rear. Storage shelves may generally be installed in any of the usable shelf positions, although some limitations may be imposed by either weight or cable length restrictions. One shelf position in the rear of the cabinet is reserved for power cable distribution unit (CDU) installation, and one is left open for proper air flow. · Shelf brackets--Movable shelf brackets within the cabinet can be configured to hold any of the StorageWorks shelf types. Shelf brackets must be procured separately from the cabinet or may come packaged with cabinet options. · SBB shelves--StorageWorks building block (SBB) shelves are designed to house any of the SBBs in the StorageWorks family. The shelves can accept one or two power supply SBBs as well as a number of peripheral device SBBs. SBB shelves provide the mechanical mounting, power, and signal interfaces for the SBBs they house. The shelves are 445 mm (17.5 inch) in width and are designed to slide into the shelf brackets. · SBBs--StorageWorks building blocks (SBBs) are modular computer peripheral devices or power units from the StorageWorks family. SBBs may be disk drives, tape drives, shelf power supplies, battery backup units, or other types of peripherals conforming to the Small System Computer Interface 2 (SCSI-2) specification. They are housed in both 3½-inch and 5¼-inch wide modular carriers designed to plug into slots in SBB shelves. Connectors on the rear of each SBB mate with connectors in the SBB shelf to provide the electrical interface between the two units. · Controller shelves--Controller shelves are StorageWorks shelves designed specifically to house SCSI-2 peripheral controller and cache memory modules. These shelves may also accept one or two power supply SBBs. Controller shelves provide the mechanical mounting, power, and signal interfaces for the units they house. The cabinet allows for the mounting of one controller shelf in the front and one in the rear. · CDUs--Cable distribution units (CDUs) provide the connections necessary to distribute ac power to the shelves in the SW500 cabinet. CDUs also provide surge and spike protection, along with a circuit breaker to control the incoming ac power. As an option, two CDUs can be configured with an auxiliary ac power source to provide redundant primary power within the cabinet. 2-4 Introduction Figure 2-2 Cabinet Major Components Introduction 2-5 · TZ8x7-Series Tape Drives-Up to two TZ8x7-series tape drives can be installed in the upper area of the cabinet, as shown in Figure 2-3. A chassis rail is used to support the tape drive from one side. Figure 2-3 TZ8x7-Series Tape Drive 2-6 Introduction 2.3 Power Configurations The ac power distribution within the SW500-series cabinet can be configured in one of the following three ways to provide the desired level of power redundancy to the cabinet's shelf-mounted peripheral devices: · Single-cabinet power configuration · Dual-shelf power configuration · Dual-cabinet power configuration A description of each configuration option is presented in the following sections. 2.3.1 Single-Cabinet Power Configuration In the single-cabinet power configuration, shown in Figure 2-4, a single ac power source and CDU (A) are used to supply ac power to a single ac power supply (A) in each shelf. This is the normal configuration for the cabinet, and it provides no power redundancy to shelf peripheral devices. Figure 2-4 Single-Cabinet Power Configuration Introduction 2-7 2.3.2 Dual Shelf Power Configuration In the dual-shelf power configuration, shown in Figure 2-5, a single primary power source and CDU (A) are used to supply ac power to two ac power supplies (A and B) in each shelf. If either power supply fails, the shelf remains powered by the other supply. This configuration provides shelf power supply redundancy to the shelf 's peripheral devices. The cabinet supports a maximum of six shelves in the dual-shelf power configuration. An additional CDU, powered also from the primary ac power source, can be installed to accommodate up to 10 shelves with this power configuration. Figure 2-5 Dual-Shelf Power Configuration 2-8 Introduction 2.3.3 Dual-Cabinet Power Configuration In the dual-cabinet power configuration, shown in Figure 2-6, an auxiliary power source and a second CDU (B) are used to supply ac power to a second ac power supply (B) in each shelf. If the primary power source, CDU A, or ac power supply A, fails, the shelf remains powered by ac power supply B. This configuration provides complete power redundancy to the shelf 's peripheral devices. Figure 2-6 Dual-Cabinet Power Configuration 2.4 Cabinet Cooling System Each StorageWorks shelf contains two rear-mounted blowers that move heat from the shelf into the cabinet interior. The cabinet structure is such that heated air moves from the cabinet interior up and out through the unused shelf positions in the rear. It is then exhausted through the rear door. Logic signals allow the status of the shelf blowers to be monitored by the host system. Introduction 2-9 Filler panels and air separation panels are used to properly route heated air through the cabinet. Filler panels are flat plates that serve as covers for unused shelf positions. Air separation panels are small baffles that mount just above and outside the upper-most shelf in each side of the cabinet to prevent heated air from being drawn down between the cabinet door and the shelf. Heated air would be drawn back into the shelf and would interfere with proper cooling. 2-10 Introduction 3 ------------------------------------------------------------ Site Preparation This chapter presents the information necessary to prepare a site for the installation of the StorageWorks SW500-series cabinet. 3.1 General Considerations SW500-series cabinets are intended for installation in Class A computer room environments. Before installing the cabinet, make sure that the following conditions have been met: · The primary power source can supply the required amount of ac power, as specified in Table 2-1. · The site's primary power receptacles are the correct versions for the power plugs provided with the cabinet. (The SW5xx-AC cabinet is supplied with a power cable that has a NEMA 5-20P twist-lock plug. The SW5xx-AD cabinet is supplied with a power cable that has an IEC 309 plug.) · The site floor can safely bear the weight of the cabinet, as specified in Table 2-1. Keep in mind that the entire weight of the cabinet is borne by the small surface area of the four leveler feet when the cabinet is installed in its final position. · Adequate space is provided around the cabinet for opening the front and rear doors, for accessing cables, and for adequate airflow. SW500-series cabinets are not designed to be fastened to adjacent cabinets. See Figure 3-1 for specific space requirements. Site Preparation 3-1 Figure 3-1 Minimum Installation Clearances · The cabinet is positioned to allow external interface cables to reach to the appropriate system units. · If the cabinet is to be positioned next to other enclosures, there is sufficient service loop in any connecting cables to allow the cabinet to be moved out for access. 3.2 Equipment Grounding SW500-series cabinets are normally connected to other equipment by one or more interface buses. For both safety and reliable operation, proper grounding is required between the cabinet and other equipment. ------------------------------------------------------------ WARNING ------------------------------------------------------------ If enclosures are not connected to a common ground, there is a potential for personal injury as a result of electric shock. ------------------------------------------------------------ ------------------------------------------------------------ WARNING ------------------------------------------------------------ When connecting a terminal to a controller within the cabinet, proper grounding is required to prevent personal injury and equipment damage. For optimum safety and performance, it is recommended that the terminal be powered by one of the two utility IEC outlets on the back of each cable distribution unit (CDU). A spare power cord is furnished with each cabinet for this purpose. ------------------------------------------------------------ 3-2 Site Preparation If ground offset voltages generated in the power distribution system are excessive, data transmission across interface buses can be affected. Significant performance degradation or possible data corruption could result. SW500-series cabinets are shipped with a ground strap (Digital part number 12-13756-A8) that is connected to the rear of the unit. For optimum safety and performance, Digital recommends that the ground strap be connected to the chassis of the host system. Make sure that site power distribution systems meet local electrical codes prior to the installation of SW500-series cabinets. To make sure that the power distribution system will perform satisfactorily, a power system survey should be done before installation. The following areas should be investigated: · Do all outlets have power ground connections? · Do the power cables on all equipment at the site have grounding prongs? · Are all power outlet neutral connections isolated from ground? · Are the grounds for all outlets connected to the same power distribution panel? · Are all devices that are connected to the same breaker as the SW500 cabinet Underwriter 's Laboratories (UL) or International Electrotechnical Commission (IEC) approved? ------------------------------------------------------------ CAUTION ------------------------------------------------------------ If there is a deficiency found in any area during the power survey, a qualified electrician must correct it before installation may begin. Failure to resolve power survey deficiencies before installing the equipment may result in personal injury as a result of electric shock. ------------------------------------------------------------ If no problems are found during the survey, the site grounding system may be considered to be adequate for personnel safety and reliable SW500-series cabinet operation. Site Preparation 3-3 4 ------------------------------------------------------------ Unpacking and Installation This chapter describes the unpacking, installation, inspection, and powering of StorageWorks SW500-series cabinets. 4.1 Unpacking the Cabinet SW500-series cabinets are packed in a corrugated carton attached to a wooden shipping pallet, as shown in Figure 4-1. Unpack the cabinet as follows: ------------------------------------------------------------ Note ------------------------------------------------------------ Before unpacking the equipment, inspect the shipping carton for signs of external damage. Report any damage to the local carrier and to Multivendor Customer Services or your local Digital sales office. ------------------------------------------------------------ ------------------------------------------------------------ CAUTION ------------------------------------------------------------ Failure to thermally stabilize preconfigured storage subsystems may damage drive media or associated electronics when the unit is turned on. Environmental stabilization begins when the equipment is placed in the room in which it is to be installed. ------------------------------------------------------------ 1. Remove the cover, the fasteners, and the corrugated board from the pallet. 2. Remove the cartons containing the ramp set and skirt kit and set them aside. 3. Cut the shipping straps. Some cabinets are packaged in a plastic or barrier bag. If the cabinet arrives in a plastic bag, leave the bag in place until the cabinet has adjusted to the local temperature and humidity, as follows: · To ensure proper operation of Digital storage devices, the StorageWorks building block (SBB) temperature must be within 18-29°C (65-85°F). Table 4-1 specifies the time required to thermally stabilize SBBs based on the ambient shipping temperature. Unpacking and Installation 4-1 Table 4-1 Thermal Stabilization Specifications ------------------------------------------------------------ Ambient Temperature Range °C Ambient Temperature Range °F Minimum Stabilization Time ------------------------------------------------------------ 60 to 66 140 to 151 3 hours 50 to 59 122 to 139 2 hours 40 to 49 104 to 121 1 hour 30 to 39 86 to 103 30 minutes 18 to 29 65 to 85 None 10 to 17 50 to 64 30 minutes 0 to 9 32 to 49 1 hour -10 to -1 14 to 31 2 hours -20 to -11 -4 to 13 3 hours -30 to -21 -22 to -5 4 hours -40 to -31 -40 to -21 5 hours ------------------------------------------------------------ · If condensation is visible on the outside of the storage device, stabilize the device and the SBB in the operating environment for 6 hours or until the condensation is no longer visible, whichever is longer. Do not insert the storage device into the shelf until it is fully stabilized. · If condensation is not visible on the outside of the storage device, thermally stabilize the device for the amount of time specified in Table 4-1. 4. Once the cabinet is unpacked, examine the front and rear doors, right and left side panels, top panel, and undercarriage for any apparent damage. Report such problems immediately. 5. Retain the shipping container and all packing materials. 4-2 Unpacking and Installation Figure 4-1 Shipping Container Contents Unpacking and Installation 4-3 4.2 Removing the Cabinet from the Pallet This section describes how to remove the cabinet from the pallet. Use the following procedure to remove the cabinet from the shipping pallet: 1. Remove any packing material remaining on the pallet. ------------------------------------------------------------ WARNING ------------------------------------------------------------ Serious personal injury may result if correct safety precautions are not taken during the unpacking procedure. All personnel should wear safety glasses. The ramps, ramp side rails, and metal hardware should be inspected for the following defects: · Cracks more than 25 percent of the ramp depth, either across or lengthwise on the ramp · Knots or knotholes going through the thickness of the ramp and greater than 50 percent of the ramp width · Loose, missing, or broken ramp side rails · Loose, missing, or bent metal hardware If any of these defects exist, do not use the ramp. Investigate alternate means of removing the cabinet or order a new ramp. (The part number for the ramp set is 99-08897-05.) ------------------------------------------------------------ 2. Remove the two unloading ramps from the carton and inspect them. 3. Attach the ramps by fitting the metal prongs into the holes on the pallet, as shown in Figure 4-2. Make sure that the arrows on the ramps match up with the arrows on the pallet. 4. Extend the ramps to their full length. 5. See Figure 4-3 for the location of the shipping bolts. Remove the bolts. 6. Remove the shipping brackets, shown in Figure 4-3, from the cabinet levelers and set them aside. 4-4 Unpacking and Installation Figure 4-2 Shipping Pallet Ramp Installation Unpacking and Installation 4-5 Figure 4-3 Shipping Bolts and Brackets ------------------------------------------------------------ WARNING ------------------------------------------------------------ The levelers must be raised fully for the cabinet to roll easily down the unloading ramps. Failure to do so may result in personnel injury as a result of the cabinet tipping off the pallet or ramp. ------------------------------------------------------------ 7. Loosen the leveler locking nuts and screw the four cabinet levelers all the way up into the cabinet. ------------------------------------------------------------ WARNING ------------------------------------------------------------ Three people are required to unload the cabinet from the shipping pallet. Failure to use sufficient personnel may result in injury and equipment damage. ------------------------------------------------------------ 8. Carefully roll the cabinet off the pallet and down the ramps to the floor as shown in Figure 4-4. 4-6 Unpacking and Installation Figure 4-4 Removing the Cabinet from the Pallet 4.3 Configuring the Cabinet Rack Space Any shelves to be added to the cabinet should be installed before it is placed in its permanent position. See Chapter 5 or 6 for the proper location of shelves. See Chapter 7 for detailed information and procedures regarding shelf bracket and shelf installation. 4.4 Placing the Cabinet ------------------------------------------------------------ WARNING ------------------------------------------------------------ Use extreme caution when rolling the cabinet across the floor. Failure to raise all leveler feet and to provide a clear path for the cabinet's casters may result in the cabinet tipping over and injury to personnel. ------------------------------------------------------------ Once the cabinet rack space is configured as desired, the cabinet may be rolled to its final installation position. Secure loose cabinet cables up and out of the way when rolling the cabinet. Unpacking and Installation 4-7 4.5 Leveling the Cabinet Level the cabinet in its final position as follows: 1. Loosen the locknuts on all four leveler feet as shown in Figure 4-5. 2. Turn each leveler hex nut clockwise until the leveler foot contacts the floor. 3. Adjust all four leveler feet until the cabinet is level and the load is removed from all casters. Verify that the casters spin freely. 4. Tighten the locknuts on all four leveler feet. Figure 4-5 Leveler Foot Adjustment 4.6 Installing the Skirt Kit The skirt kit is packaged separately inside the corrugated carton with the cabinet. Installation of the skirt kit is optional. Install the skirt kit around the base of the cabinet as follows: 1. Unpack the skirt kit carton and use Figure 4-6 to identify the right, left, front, and rear skirts. 2. Position the skirts next to the cabinet, as shown in Figure 4-6. 3. The skirt fasteners are quarter-turn fasteners. Position each skirt against the cabinet such that the fasteners mate with the receptacles on the cabinet's base. 4. Using a screwdriver, push each fastener into its mating receptacle on the cabinet base and turn it one quarter-turn clockwise. (Once the skirts are installed, there is a small amount of play that allows them to be adjusted slightly up or down for proper alignment.) 4-8 Unpacking and Installation Figure 4-6 Cabinet Skirt Installation 4.7 Inspecting the Cabinet Inspect the cabinet installation as follows: 1. Make sure that all hardware within the cabinet is fastened securely, and that there are no loose pieces present in the cabinet interior. 2. Make sure that all four leveler feet are lowered to support the full weight of the cabinet, and that the cabinet is level. 3. Make sure that there are no obstructions to the airflow from the shelf blowers. (The side panels may need to be removed to check the shelf blowers.) 4. Check the identification label on the rear of the cabinet to verify that the cabinet is configured to accept the power available at the site. 5. Make sure that all ac power cords connected from the shelves and cabinet fans to the CDUs are firmly seated in their connectors at both ends. 6. Make sure that all signal cables internal to the cabinet are firmly seated in their connectors at both ends. Unpacking and Installation 4-9 7. Make sure that all SBBs are seated firmly in their shelves. 8. Make sure that any necessary external interface cables are installed and firmly seated in their connectors. 9. Make sure that the circuit breaker on each CDU is in the (OFF) position. 4.8 Powering the Cabinet Once the cabinet has been inspected, power may be applied as follows: 1. Plug the primary power cables from each CDU into the appropriate site power receptacles. 2. Switch the circuit breaker on each CDU to the j (ON) position. 3. Verify that all shelf blowers are operating and that both status indicators on each shelf power supply SBB are illuminated. Refer to the StorageWorks Solutions SBB and Shelf User 's Guide for further information on shelf status indicators. ------------------------------------------------------------ WARNING ------------------------------------------------------------ Failure to reduce the leakage current can result in equipment performance degradation and personal injury due to electric shock. ------------------------------------------------------------ 4. Measure the cabinet's leakage current. If the leakage current exceeds 3.5 mA after installation, Digital recommends that power cables with industrial type B, IEC 950 connectors be installed. 5. Initialize the storage subsystem. Procedures for initializing the cabinet's controller and storage devices are specific to the host system to which it is connected. Refer to the appropriate system documentation for initialization procedures. 4-10 Unpacking and Installation 5 ------------------------------------------------------------ Configuring SW500 Storage-Only Cabinets This chapter describes the configuration of the SW500 storage-only cabinet. This storage subsystem uses only the StorageWorks BA350-Sx shelf type. The Small Computer Systems Interface 2 (SCSI-2) is used as the communications path between the cabinet's storage devices and their external controllers. SW500 storage-only cabinets can be configured with up to 10 storage shelves. ------------------------------------------------------------ WARNING ------------------------------------------------------------ While working in the cabinet interior, ac power must be removed from cabinet components. Failure to do so may result in personal injury as a result of electric shock. ------------------------------------------------------------ Prior to performing any of the procedures in this chapter, remove ac power from the cabinet components. If the cabinet is operating, spin down all disk drives and halt all tape drives in the cabinet. Switch the circuit breaker on the front panel of the cabinet's cable distribution units (CDUs) to the (OFF) position. 5.1 Cabinet Configuration ------------------------------------------------------------ WARNING ------------------------------------------------------------ Failure to install cabinet components in the proper order could result in cabinet instability, injury to personnel, and damage to equipment. ------------------------------------------------------------ ------------------------------------------------------------ Note ------------------------------------------------------------ To maintain FCC compliance and proper airflow, filler panels and air separation panels must be installed as specified for your particular cabinet configuration. See Section 5.2 for further information. ------------------------------------------------------------ The order of shelf installation in SW500 storage-only cabinets is predetermined to allow for cabinet loading and cable length factors. Figures 5-1 and 5-2 show the layout of both the front and rear of the storage-only cabinet. To prevent cabinet instability, shelves must be installed in the order shown by the position numbers in the illustrations. Configuring SW500 Storage-Only Cabinets 5-1 5.1.1 Shelf Locations Without Tape Drives Figure 5-1 shows the proper cabinet rail mounting holes for each shelf location when TZ8x7-series tape drives are not installed. Shelf mounting hole numbers are counted from the top of each rail. The hole number assignments shown in the figure identify the mounting holes for each shelf bracket's top mounting stud. See Chapter 7 for detailed procedures pertaining to the mounting of StorageWorks shelves. Figure 5-1 SW500 Storage-only Cabinet Shelf Locations Without Tape Drives 5.1.2 TZ8x7-Series Tape Drive/Shelf Locations Figure 5-2 shows the proper cabinet rail mounting holes for each shelf location when TZ8x7-series tape drives are installed. Mounting hole numbers are counted from the top of each rail. The hole number assignments shown in the figure identify the mounting holes for each shelf bracket's top mounting stud and for the tape drive chassis rail round standoff locating hole. See Chapter 7 for detailed procedures pertaining to the mounting of StorageWorks shelves. See Chapter 8 for detailed procedures pertaining to the mounting of the tape drive. Note that the TZ8x7-series tape drive extends completely through the cabinet and uses the upper two shelf mounting positions in the front and the rear. 5-2 Configuring SW500 Storage-Only Cabinets Figure 5-2 SW500 Storage-only Cabinet Shelf and Tape Drive Locations 5.2 Filler and Air Separation Panels ------------------------------------------------------------ Note ------------------------------------------------------------ To maintain FCC/VDE compliance and proper airflow, filler panels and air separation panels must be installed as specified for your particular cabinet configuration and in accordance with the following guidelines. ------------------------------------------------------------ Filler panels can be installed in empty shelf positions to control air flow and electromagnetic emissions, and for the purpose of cosmetics. Filler panels are normally supplied and installed based on the specific configuration of the SW500 storage-only cabinet ordered. At least two filler panels are shipped with each cabinet. Install filler panels using the following guidelines: · If your cabinet has a particular filler panel configuration that was factory- installed, do not remove the panels unless you are reconfiguring the cabinet. · If you are adding shelves or reconfiguring your cabinet, use filler panels in all open slots below the highest shelf installed. This applies in the front and the rear of the cabinet. · To ensure proper cooling air flow, never install filler panels above the highest shelf installed in the cabinet. Configuring SW500 Storage-Only Cabinets 5-3 Two air separation panels are supplied with each cabinet. Install an air separation panel just above the upper-most shelf in the front and the rear of the cabinet. Air separation panels are not required above TZ8x7-series tape drives, or above storage position S4 when one or two tape drives are installed. See Chapter 7 for complete details on the installation of air separation panels. 5.3 Power Configuration The power in SW500 storage-only cabinets can be configured in any of the forms described in Section 2.3. See Chapter 9 for detailed procedures on configuring power within the cabinet. 5.4 Signal Cabling and Routing Signal cabling in the SW500 storage-only cabinet consists of intershelf SCSI-2 cabling and shelf-to-host SCSI-2 controller cabling. 5.4.1 Shelf SCSI-2 Cable Selection and Connection The procedures involved in SCSI bus design and connection are specific to the components being bused together. Refer to the following publications for details on the selection of SCSI-2 cables and their connection to the cabinet's shelves: · StorageWorks Solutions Family Configuration Guide · StorageWorks Solutions SBB and Shelf User 's Guide 5.4.2 SCSI-2 Cable Routing SCSI-2 signal cables enter SW500 storage-only cabinets through openings in the rear edges of the base pan of the cabinet. Cables destined for rear shelves are normally routed along the base pan to the right-most vertical cabinet rail. They are then routed to the the right-hand side of each rear shelf along the rail. SCSI-2 cables destined for front shelves are routed along the base pan and up the right-hand vertical cabinet rail to a point just above the CDUs (refer to Figures 5-1 and 5-2). The cables then pass into the interior of the cabinet and across to an opening in the vertical chassis rail behind the two right-hand shelf brackets of positions S1 and S2. They pass through the opening and out to the front of the cabinet through the space between the S1/S2 shelf brackets. On the front of the cabinet, cables are normally routed along the right vertical cabinet rail to the right-hand side of each shelf along the rail. Half-meter, SCSI-2 cables are normally used to link adjacent shelves to each other. When TZ8x7-series tape drives are installed, there is a space between the bottom of the drives and shelf position S1 (refer to Figure 5-2). This space is normally used for the routing of SCSI-2 cables from the rear to the front of the cabinet. 5.4.3 General Cable Routing Rules Cables should be routed and installed with the following rules in mind: ------------------------------------------------------------ WARNING ------------------------------------------------------------ Cabinet rail edges may be sharp and can slice or abrade skin or cable insulation. ------------------------------------------------------------ 5-4 Configuring SW500 Storage-Only Cabinets · Cables should be routed in a manner that allows the shortest overall cable length. · Signal cables should be kept away from power cables. · Care should be taken to avoid sharp cable bends. · Cables should be routed to allow StorageWorks building blocks (SBBs) and controller modules to be freely inserted and removed from their shelves. · Cables should not be routed tightly against the metal edges of the cabinet. · Signal cable bundling along the outside of the cabinet rails should be done to allow the doors to easily close. · Cables should be fastened along cabinet rails using cable ties or nylon cable clamps, U-nuts, and screws. Added cables should be included in existing cable clamps where possible. Configuring SW500 Storage-Only Cabinets 5-5 6 ------------------------------------------------------------ Configuring SW500 Controller/Storage Cabinets This chapter describes the configuration of SW500 controller/storage cabinets. These storage subsystems use StorageWorks HSZ10(TM), HSZ15, HSJ40(TM), or HSZ40 controllers mounted in BA350-Ex or BA350-Mx shelves. Storage devices are housed in BA350-Sx shelves. 6.1 HS-Family Controllers The SW500-series cabinet is qualified for use with the following HS-family controllers: · HSJ40 controller--The HSJ40 Controller uses Digital's CI(TM) interface as the communication path with the host computer and uses the Small Computer System Interface 2 (SCSI-2) as the storage device bus. Two HSJ40 controllers can be housed in a single StorageWorks BA350-Mx controller shelf. Factory preconfigured cabinets set up to use the HSJ40 controller are designated by the model number SW51x. · HSZ10 and HSZ15 controllers--HSZ10 and HSZ15 controllers use the SCSI-2 interface as the communication path with the host computer, as well as for the storage device bus. Two HSZ10 or HSZ15 controllers can be installed in a single StorageWorks BA350-Ex shelf. The StorageWorks BA350-Ex shelf is a controller/storage shelf combination with an integral backplane. It takes up two adjacent shelf positions in the cabinet. · HSZ40 controller--The HSZ40 controller uses the SCSI-2 interface as the communication path with the host computer, as well as for the storage device bus. Two HSZ40 controllers can be installed in a single StorageWorks BA350-Mx shelf. SW500 controller/storage cabinets can be configured with up to four controllers in redundant pairs and with up to nine storage shelves. The configuration of HSJ40, HSZ10, HSZ15, and HSZ40 cabinets is very similar. The differences lie in the host interface cable configuration used and the fact that a StorageWorks DWZZA SCSI signal converter may be used with the HSZxx controllers. Refer to the StorageWorks Array Controller HS Family of Array Controllers User 's Guide and the StorageWorks BA350-MA Controller Shelf User 's Guide for further information on the installation and configuration of the BA350-Mx shelf. The BA350-Ex shelf is a major component of the StorageWorks RAID Array 110 subsystem. Refer to the StorageWorks RAID Array 110 Subsystem User 's Guide for further information on the installation and configuration of the BA350-Ex shelf. Configuring SW500 Controller/Storage Cabinets 6-1 6.2 Cabinet Configuration ------------------------------------------------------------ WARNING ------------------------------------------------------------ While working in the cabinet interior, ac power must be removed from the cabinet components. Failure to do so may result in personal injury as a result of electric shock. ------------------------------------------------------------ Prior to performing any of the procedures in this chapter, remove ac power from the cabinet components. If the cabinet is operating, spin down all disk drives and halt all tape drives in the cabinet. Switch the circuit breaker on the front panel of the cabinet's CDUs to the (OFF) position. ------------------------------------------------------------ WARNING ------------------------------------------------------------ Failure to install cabinet components in the proper order could result in cabinet instability, injury to personnel, and damage to equipment. ------------------------------------------------------------ ------------------------------------------------------------ Note ------------------------------------------------------------ To maintain FCC compliance and proper airflow, filler panels and air separation panels must be installed as specified for your particular cabinet configuration. See Section 6.3 for further information. ------------------------------------------------------------ The order of shelf installation in SW500 controller/storage cabinets is predetermined to allow for cabinet loading and cable length factors. Figures 6-1 and 6-2 show the layout of both the front and rear of the controller/storage cabinet. To prevent cabinet instability, shelves must be installed in the order shown by the position numbers in the illustrations. 6.2.1 Shelf Locations Without Tape Drives Figure 6-1 shows the proper cabinet rail mounting holes for each shelf location when TZ8x7-series tape drives are not installed. Note that storage position S7 may be used for the installation of a second controller shelf. Shelf mounting hole numbers are counted from the top of each rail. The hole number assignments shown in the figure identify the mounting holes for each shelf bracket's top mounting stud. See Chapter 7 for detailed procedures pertaining to the mounting of StorageWorks shelves. ------------------------------------------------------------ Note ------------------------------------------------------------ The BA350-Ex modular storage shelf consists of a controller shelf with an attached storage shelf. In systems using BA350-Ex shelves, the storage shelf directly below each controller shelf is physically attached to and functionally dedicated to its respective controller. ------------------------------------------------------------ 6-2 Configuring SW500 Controller/Storage Cabinets Figure 6-1 SW500 Controller/Storage Cabinet Shelf Locations Without Tape Drives 6.2.2 TZ8x7-Series Tape Drive/Shelf Locations Figure 6-2 shows the proper cabinet rail mounting holes for each shelf location when TZ8x7-series tape drives are installed. Mounting hole numbers are counted from the top of each rail. The hole number assignments shown in the figure identify the mounting holes for each shelf bracket's top mounting stud and for the tape drive chassis rail round standoff locating hole. See Chapter 7 for detailed procedures pertaining to the mounting of StorageWorks shelves. See Chapter 8 for detailed procedures pertaining to the mounting of TZ8x7-series tape drives. Note that the TZ8x7-series tape drive extends completely through the SW500 cabinet and utilizes the upper two shelf mounting positions in the front and the rear. ------------------------------------------------------------ Note ------------------------------------------------------------ The BA350-Ex modular storage shelf consists of a controller shelf with an attached storage shelf. In systems using BA350-Ex shelves, the storage shelf directly below each controller shelf is physically attached to and functionally dedicated to its respective controller. ------------------------------------------------------------ Configuring SW500 Controller/Storage Cabinets 6-3 Figure 6-2 SW500 Controller/Storage Cabinet Shelf and Tape Drive Locations 6.3 Filler and Air Separation Panels ------------------------------------------------------------ Note ------------------------------------------------------------ To maintain FCC compliance and proper airflow, filler panels and air separation panels must be installed as specified for your particular cabinet configuration and in accordance with the following guidelines. ------------------------------------------------------------ Filler panels can be installed in empty shelf positions to control air flow and electromagnetic emissions and for the purpose of cosmetics. Filler panels are normally supplied and installed based on the specific configuration of the SW500 controller/storage cabinet ordered. At least two filler panels are shipped with each cabinet. Install filler panels using the following guidelines: · If your cabinet has a particular filler panel configuration that was factory- installed, do not remove the panels unless you are reconfiguring the cabinet. · If you are adding shelves or reconfiguring your cabinet, use filler panels in all open slots below the highest shelf installed. This applies in the front and the rear of the cabinet. · To ensure proper cooling air flow, never install filler panels above the highest shelf installed in the cabinet. 6-4 Configuring SW500 Controller/Storage Cabinets Two air separation panels are supplied with each cabinet. Install an air separation panel just above the upper-most shelf in the front and the rear of the cabinet. Air separation panels are not required above TZ8x7-series tape drives, or above storage position S3 when one or two tape drives are installed. See Chapter 7 for details on the installation of air separation panels. 6.4 Power Configuration The power in SW500 controller/storage cabinets can be configured in any of the forms described in Section 2.3. See Chapter 9 for detailed procedures on configuring power within SW500 controller/storage cabinets. 6.5 Host CI Signal Cabling and Routing In installations using HSJ40 controllers, the interface signal cabling for each controller consists of two parts: · An internal CI cable connected to the host port on the controller. The cable terminates at the other end with a cable connector block. · Four host CI cables, connecting the cable connector block to the host. A CI bulkhead is used to mount the cable connector block to the cabinet. CI bulkheads are small brackets mounted in the unused shelf position above the CDUs (refer to Figures 6-1 and Figure 6-2). The connector block on the end of each internal CI cable is mounted to the CI bulkhead, and the host CI cables are connected to the connector block, as shown in Figure 6-3. Each CI bulkhead can accept two internal CI cables, enough for one controller shelf containing two controllers. Two CI bulkheads are supplied with each cabinet. 6.5.1 CI Bulkhead Installation Install the CI bulkheads as follows (see Figure 6-3): 1. Choose a mounting position on the inner flange of the right rear vertical chassis rail above the upper-most CDU in the cabinet, as shown in the illustration. Choose a position as close to the top of the cabinet as possible. 2. Position a CI bulkhead against the vertical chassis rail, as shown. 3. Fasten the CI bulkhead to the chassis rail with two screws and KEP nuts, as shown. 4. Repeat steps 1-3 for the left-hand CI bulkhead, choosing a mounting position on the inner flange of the left rear vertical chassis rail directly across from the right-hand CI bulkhead. 6.5.2 Internal CI Cable Routing Route the internal CI cables as follows (refer to Figure 6-3): · For rear-mounted controllers: 1. Remove the four connector block retaining nuts and flat washers from the internal CI cable connector block. (Discard the flat washers.) Configuring SW500 Controller/Storage Cabinets 6-5 Figure 6-3 CI Bulkhead and Internal CI Cable Installation 2. Insert the connectors on the internal CI cable connector block into one of the free positions on the CI bulkhead, as shown. Fasten the connector block to the bulkhead with the four retaining nuts, as shown. 3. Route the cable from the CI bulkhead down along the right-hand vertical cabinet rail to the rear-mounted controller shelf. 4. Repeat for each internal CI cable to be connected to the rear-mount controller. · For front-mounted controllers: 1. Remove the four connector block retaining nuts and flat washers from the internal CI cable connector block. (Discard the flat washers.) 2. Insert the connectors on the internal CI cable connector block into one of the free positions on the CI bulkhead, as shown. Fasten the connector block to the bulkhead with the four retaining nuts, as shown. 6-6 Configuring SW500 Controller/Storage Cabinets 3. Pass the cable across the interior of the cabinet to the opening in the front vertical cabinet rail behind the two right-hand shelf brackets of positions C1 and S3 (refer to Figures 6-1 and 6-2). 4. Pass the cable through the opening and out to the front of the cabinet through the opening next to the C1/S3 shelf brackets. 5. Route the cable to the front controller in position C1. 6. Repeat for each internal CI cable to be connected to the front-mounted controller. 6.5.3 Host-to-CI Bulkhead Cable Routing Route the CI cables from each host to the appropriate CI bulkhead as follows: 1. Pass the host CI cables into the cabinet through the openings in the rear edges of the base pan of the cabinet. 2. Bundle and route the four host CI cables along the base pan to the rear right- hand vertical rail and upward to the open shelf position above the upper-most CDU. 3. Once at the open shelf position, route the host CI cables to the appropriate internal CI cable connector block, already installed on either the right or left CI bulkhead. 4. Screw the connector on each host CI cable onto its correct connector on the internal CI cable connector block. (Refer to the StorageWorks Array Controller HS Family of Array Controllers User 's Guide for information regarding the connections to the CI cable connector block.) If your cabinet contains multiple controllers, make sure that you connect the host CI cables to the correct internal CI cable. 5. Repeat steps 1-4 for each set of four host CI cables from the host. 6.6 Host SCSI-2 Signal Cabling and Routing In installations where the controllers use the SCSI-2 interface to communicate with the host, the interface cables are routed directly from the controller to the host. A bulkhead is not used. Configuring SW500 Controller/Storage Cabinets 6-7 ------------------------------------------------------------ Note ------------------------------------------------------------ If a StorageWorks DWZZA-AA SCSI signal converter is being used on the host interface, it may be desirable to house the converter in the SW500 cabinet. If either the front or rear lower shelf position is unused, the converter may be placed in the base pan of the cabinet. In this case, the host interface cable is routed through openings in the rear edges of the base pan of the cabinet and directly to the single-ended side of the signal converter. The cable connecting to the differential side of the converter is then routed as described in the following paragraphs. ------------------------------------------------------------ Host SCSI-2 Signal Cable Routing Route the host SCSI-2 interface cables to rear or front-mounted controllers as follows: · For rear-mounted controllers: 1. Route the cable into the SW500 controller/storage cabinet through the openings in the rear edges of the base pan of the cabinet. 2. Route the cable along the base pan to the rear right-hand vertical cabinet rail. 3. Route the cable upward along the right-hand vertical cabinet rail to the rear-mounted controller shelf. 4. Repeat for each host SCSI-2 cable to be connected to a rear-mounted controller. · For front-mounted controllers: 1. Route the cable into the SW500 controller/storage cabinet through the openings in the rear edges of the base pan of the cabinet. 2. Route the cable along the base pan to the rear right-hand vertical cabinet rail. 3. Route the cable upward along the right rear vertical cabinet rail to the open shelf position just above the upper-most CDU. 4. Pass the cable across the interior of the cabinet to the opening in the front vertical cabinet rail behind the two right-hand shelf brackets of positions C1 and S3 (refer to Figures 6-1 and 6-2). 5. Pass the cable through the opening and out to the front of the cabinet through the opening next to the C1/S3 shelf brackets. 6. Route the cable to the front controller shelf in position C1. 7. Repeat for each host SCSI-2 cable to be connected to a front-mounted controller. 6.7 Shelf SCSI-2 Signal Cabling and Routing The following sections describe the routing of SCSI-2 signal cabling from the cabinet's controllers to its shelves. 6-8 Configuring SW500 Controller/Storage Cabinets 6.7.1 Shelf SCSI-2 Cable Selection and Connection The procedures involved in SCSI bus design and connection are specific to the components being bused together. Refer to the following publications for details on the selection of SCSI-2 cables and their connection to the cabinet's shelves: · StorageWorks Solutions Family Configuration Guide · StorageWorks Solutions SBB and Shelf User 's Guide · StorageWorks Array Controller HS Family of Array Controllers User 's Guide · StorageWorks BA350-MA Controller Shelf User 's Guide · StorageWorks RAID Array 110 Subsystem User 's Guide 6.7.2 SCSI-2 Cable Routing SCSI-2 cables from the front controller to the controller 's associated front storage shelves are normally routed along the right-hand vertical cabinet rail to the right-hand side of each shelf. Half-meter, SCSI-2 cables are normally used to link adjacent shelves or tape drives to each other. SCSI-2 cables connecting front shelves to rear shelves pass to the rear of the cabinet via the opening between the right-hand shelf brackets at positions S4 and S5 (refer to Figure 6-1). The cables pass through this opening and into the interior of the cabinet through the opening in the vertical cabinet rail behind the S4/S5 brackets. They then pass across the interior of the cabinet to the unused shelf position above the CDUs. They pass through the right-hand side of the unused shelf position and down along the right-hand cabinet rail to the appropriate rear shelves. When TZ8x7-series tape drives are installed, there is a space between the bottom of the drives and shelf position S3 (refer to Figure 6-2). This space is normally used for the routing of SCSI-2 cables from the rear to the front of the cabinet. Table 6-1 specifies the SCSI-2 cable length required to connect each controller position with its companion shelves in SW500 controller/storage cabinets. Table 6-1 SW500 Controller/Storage Cabinet SCSI-2 Cable Lengths ------------------------------------------------------------ Controller Position Storage Shelf/Tape Position Cable Length Required ------------------------------------------------------------ C1 Front shelves 1.00 m (3.28 ft) C1 Rear shelves 2.00 m (6.56 ft) C1 T1, T2 2.00 m (6.56 ft) C2 Rear shelves 1.00 m (3.28 ft) ------------------------------------------------------------ 6.8 General Signal Cable Routing Rules Cables should be routed and installed with the following rules in mind: ------------------------------------------------------------ WARNING ------------------------------------------------------------ Cabinet rail edges may be sharp and can slice or abrade skin or cable insulation. ------------------------------------------------------------ Configuring SW500 Controller/Storage Cabinets 6-9 · Cables should be routed in a manner that allows the shortest overall cable length. · Signal cables should be kept away from power cables. · Care should be taken to avoid sharp cable bends. · Cables should be routed to allow SBBs and controller modules to be freely inserted and removed from their shelves. · Cables should not be routed tightly against the metal edges of the cabinet. · Signal cable bundling along the outside of the cabinet rails should be done to allow the doors to easily close. · Cables should be fastened along cabinet rails using cable ties or nylon cable clamps, U-nuts, and screws. Added cables should be included in existing cable clamps where possible. 6-10 Configuring SW500 Controller/Storage Cabinets 7 ------------------------------------------------------------ Installing StorageWorks Shelves This chapter describes the installation of StorageWorks shelves into SW500-series data center cabinets. Procedures for horizontal front and rear shelf installation are presented. There are two types of shelf brackets: shelf brackets with screw mounts and shelf brackets with tab mounts. Installing air separation panels in both the front and rear of the cabinet also are covered. 7.1 General Shelf Mounting Considerations ------------------------------------------------------------ Note ------------------------------------------------------------ In the following descriptions and procedures, the terms front and rear refer to locations in the cabinet. The terms inner and outer refer to positions on the shelf brackets. ------------------------------------------------------------ Each metric bracket set consists of a pair of shelf brackets, stop brackets, and locking brackets. See Figure 7-2 for examples of these components. There are two types of shelf brackets: shelf brackets with screw mounts and shelf brackets with tab mounts. The stop brackets are attached to the inner portion of the shelf brackets to position the shelf within the brackets. The locking brackets fix the shelf in place. Various combinations of stop positions and locking bracket size are necessary to situate a particular shelf for proper clearance from the cabinet doors. The shelf bracket and stop bracket parts are used to mount all types of StorageWorks shelves in all locations. The bracket set for shelves mounted in various positions in the cabinet differs only in that the locking brackets are unique parts sized for specific cabinet positions. An air separation panel is required in both the front and rear of the cabinet to prevent the recirculation of heated air to the cabinet's shelves. The air separation panels are mounted just above the upper-most shelf in each side of the cabinet. Air separation panels normally are installed after shelf installation. Installing StorageWorks Shelves 7-1 7.2 Shelf Bracket Types SW500 cabinets can come preconfigured with screw-mounted or tab-mounted shelf brackets. Cabinets that have been field modified can contain both types of shelf brackets. See the following descriptions to determine your cabinet configuration. 7.2.1 Screw-Mounted Shelf Brackets A typical screw-mounted bracket set is shown in Figure 7-2. The shelf bracket used in this set can be identified by the two screw holes between the front of the bracket and the stop bracket screw holes. In the horizontal position, the screw-mounted brackets are attached to the vertical cabinet rails with six screws. 7.2.2 Tab-Mounted Shelf Brackets A typical tab-mounted bracket set is shown in Figure 7-4. The shelf bracket used in this set can be identified by the formed metal slot with four mounting tabs between the front of the bracket and the stop bracket screw holes. In the horizontal position, the tab-mounted brackets are attached to the vertical cabinet rails with four M5 KEP nuts and four mounting tabs. 7.3 Shelf Bracket Kit Configurations Before mounting the metric shelf bracket kit, check the contents of the bracket kit against the parts list. See Table 7-1 for the SW500 Metric Shelf Screw-Mounted Bracket Kit Parts List. See Table 7-2 for the SW500 Metric Shelf Tab-Mounted Bracket Kit Parts List. Table 7-1 SW500 Metric Shelf Screw-Mounted Bracket Kit Parts List ------------------------------------------------------------ Kit Part Number 70-30092-05 ------------------------------------------------------------ Digital Part Number Description Quantity ------------------------------------------------------------ 74-46442-01 Shelf mounting bracket 2 74-46441-01 Front shelf locking bracket 2 74-46441-02 Front shelf locking bracket 2 74-46441-03 Front shelf locking bracket (not used) 2 74-46439-01 Rear shelf locking bracket 2 74-46439-02 Rear shelf locking bracket 2 74-46440-01 Stop bracket 2 90-00063-39 Screw, THRL 10-32 TRS .500 ARCS 14 90-07786-00 U-nuts, 10-32 4 ------------------------------------------------------------ 7-2 Installing StorageWorks Shelves Table 7-2 SW500 Metric Shelf Tab-Mounted Bracket Kit Parts List ------------------------------------------------------------ Kit Part Number 70-30092-01 ------------------------------------------------------------ Digital Part Number Description Quantity ------------------------------------------------------------ 74-47506-01 Shelf mounting bracket 2 74-46441-01 Front shelf locking bracket 2 74-46441-02 Front shelf locking bracket 2 74-46441-03 Front shelf locking bracket (not used) 2 74-46439-01 Rear shelf locking bracket 2 74-46439-02 Rear shelf locking bracket 2 74-46440-01 Stop bracket 2 90-00063-39 Screw, THRL 10-32 TRS .500 ARCS 2 90-40148-02 Nut, KEP, M5, 8 MMAF, CSZ 8 ------------------------------------------------------------ 7.4 Cabinet Preparation and Shutdown Before mounting the metric shelf bracket kit, perform the following actions: ------------------------------------------------------------ WARNING ------------------------------------------------------------ While working in the cabinet interior, ac power must be removed from cabinet components. Failure to do so can result in personnel injury as a result of electric shock. ------------------------------------------------------------ 1. If the cabinet is installed and operating, spin down all disk drives and halt all tape drives in the cabinet. 2. Remove ac power from cabinet components by switching the circuit breaker on the front panel of the cabinet's power controllers or cable distribution units to the OFF or position. After you have made sure that all the parts are present and that ac power has been removed from the cabinet components, you can begin shelf installation. 7.5 Accessing the Cabinet Rack Space In maximum configurations when access to the interior of the cabinet is limited, external cabinet panels might need to be removed before shelves can be installed or reconfigured. Section 7.5.1 presents procedures for removing exterior cabinet panels. The front and rear cabinet doors are held closed by door locks mounted on the smooth vertical panel of each door. The locks are released by turning counterclockwise with a 5/32-inch hex wrench. 7.5.1 Removing the Exterior Cabinet Panels As shown in Figure 7-1, there are three side panel hanger clips on each side of the cabinet. A matching set of hanger clips are attached to each side panel. Remove the side panels as follows: Installing StorageWorks Shelves 7-3 Figure 7-1 Exterior Cabinet Panel Removal and Installation 7-4 Installing StorageWorks Shelves 1. Move the cabinet away from adjacent enclosures as necessary. 2. Loosen the top cover by pushing up on its front and rear edges until it snaps free of its fasteners. ------------------------------------------------------------ WARNING ------------------------------------------------------------ The top cover is heavy and awkward to lift. Removing it requires two people. Failure to use sufficient personnel can result in personnel injury or equipment damage. ------------------------------------------------------------ 3. Using two people, lift the top cover from the cabinet and set it aside. 4. Remove the bolts attaching the side panels to the top side rails of the cabinet. 5. Grasp a panel along its front and rear edges and lift up until the hanger clips disengage. Lift the panel away from the cabinet. 6. Repeat the previous step to remove the other panel. 7. Install the horizontal shelf brackets using the following procedures. 7.6 Installing the Shelves There are two types of shelf brackets: shelf brackets with screw mounts and shelf brackets with tab mounts. See Section 7.6.1 for shelf brackets with screw mounts. See Section 7.6.2 for shelf brackets with tab mounts and mounting studs. 7.6.1 Installing Shelves With Screw Mounts Shelf bracket installations for front and rear shelves using screw mounts are shown in Figures 7-2 and 7-3. Using the illustrations as a guide, install the shelf brackets as follows: ------------------------------------------------------------ WARNING ------------------------------------------------------------ Cabinet rail edges can be sharp and can slice or abrade skin or cable insulation. ------------------------------------------------------------ ------------------------------------------------------------ Note ------------------------------------------------------------ Two small ESD grounding posts are provided with the cabinet. One is located on a front vertical cabinet rail, and one on a rear rail. Should an ESD grounding post interfere with the installation of a shelf, move the post out of the way to any free hole on the cabinet. ------------------------------------------------------------ 1. Switch off the cabinet power as described in Section 7.1. 2. Determine the correct shelf mounting locations and corresponding cabinet rail mounting holes for the shelf bracket. Refer to Chapter 5 or 6 for this information. 3. Position the shelf bracket at the correct mounting holes just behind the outer flange of the vertical cabinet rail, as shown. 4. Using the shelf bracket as a template, mark the two U-nut mounting holes on the inner flange of the cabinet rail. Installing StorageWorks Shelves 7-5 5. Remove the shelf bracket and install two U-nuts along the inner flange of the cabinet rail at the holes marked in step 4. 6. Position and fasten the shelf bracket to the outer flange of the cabinet rail with two screws, as shown. 7. Fasten the bracket to the U-nuts with two screws. 8. Using Table 7-3, determine the correct stop bracket position for the shelf type being installed. Table 7-3 Shelf Stop Bracket Positions ------------------------------------------------------------ StorageWorks Shelf Type Front Shelf Stop Bracket Position Rear Shelf Stop Bracket Position ------------------------------------------------------------ BA350-Sx 4 1 BA350-Mx 5 2 ------------------------------------------------------------ 9. Insert the tab on the stop bracket into the slot at the correct stop position on the shelf bracket. Fasten the stop bracket to the shelf bracket, as shown. 10. Repeat steps 2 through 9 to mount the companion shelf bracket on the opposite cabinet rail. To be sure of proper alignment of the brackets, use care to mount the bracket to the correct rail mounting holes. 11. With the power supply end of the shelf to the left and the blowers facing the cabinet, slide the shelf into the shelf brackets until it contacts the inner stop brackets. The shelf should slide smoothly into the brackets. If it binds, remove it and check the alignment of the shelf brackets. The shelf bracket mounting screws might need to be loosened slightly to allow the brackets to align with the shelf. Retighten the screws when the shelf brackets are properly aligned. 12. Using Table 7-4, verify that you have the correct locking bracket part number for the shelf type and position (front or rear) being installed. Table 7-4 Shelf Locking Bracket Part Numbers ------------------------------------------------------------ StorageWorks Shelf Type Front Shelf Locking Bracket Part No. Rear Shelf Locking Bracket Part No. ------------------------------------------------------------ BA350-Sx 74-46441-01 74-46439-01 BA350-Mx 74-46441-02 74-46439-02 ------------------------------------------------------------ 13. Once the shelf is positioned within the shelf brackets, install the shelf 's locking brackets to both shelf brackets with screws, as shown. Push the locking bracket against the shelf to seat it before tightening the screws. 7-6 Installing StorageWorks Shelves Figure 7-2 Horizontal Shelf Bracket Installation Installing StorageWorks Shelves 7-7 Figure 7-3 Rear Shelf Bracket Installation 7-8 Installing StorageWorks Shelves 7.6.2 Installing Shelves with Tab Mounts Shelf bracket installations for front and rear shelves using tab mounts are shown in Figures 7-4 and 7-5. Using the illustrations as a guide, install the shelf brackets as follows: ------------------------------------------------------------ WARNING ------------------------------------------------------------ Cabinet rail edges can be sharp and can slice or abrade skin or cable insulation. ------------------------------------------------------------ ------------------------------------------------------------ Note ------------------------------------------------------------ Two small ESD grounding posts are provided with the cabinet. One is located on a front vertical cabinet rail, and one on a rear vertical cabinet rail. Should an ESD grounding post interfere with the installation of a shelf, move the post out of the way to any free hole on the cabinet. ------------------------------------------------------------ 1. Switch off the cabinet power as described in Section 7.1. 2. Determine the correct shelf mounting locations and corresponding cabinet rail mounting holes for the shelf bracket. Refer to Chapter 5 or 6 for this information. 3. Position the shelf bracket at the correct mounting holes just behind the outer flange of the vertical cabinet rail, as shown. 4. Align the bracket mounting studs and mounting tabs with the appropriate holes in the front vertical cabinet rail and seat the studs and tabs in the holes. 5. Fasten the bracket to the cabinet rail by installing KEP nuts on the upper- most and lower-most mounting studs, as shown. Do not install KEP nuts on the two middle studs at this time. 6. Using Table 7-5, determine the correct stop bracket position for the shelf type being installed. Table 7-5 Horizontal Shelf Stop Bracket Positions ------------------------------------------------------------ StorageWorks Shelf Type Front Shelf Stop Bracket Position Rear Shelf Stop Bracket Position ------------------------------------------------------------ BA350-Sx 4 1 BA350-Mx 5 (Stop bracket not used) 2 BA350-Ex 3 1 ------------------------------------------------------------ 7. Insert the tab on the stop bracket into the slot at the correct stop position on the shelf bracket. Fasten the stop bracket to the shelf bracket, as shown. For front-mounted BA350-Mx shelves, the inner lip on the mounting bracket serves as the stop bracket. 8. Repeat steps 2 through 7 to mount the companion shelf bracket on the opposite cabinet rail. To be sure of proper alignment of the brackets, use care to mount the bracket to the correct rail mounting holes. Installing StorageWorks Shelves 7-9 9. With the power supply end of the shelf to the left and the blowers facing the cabinet, slide the shelf into the shelf brackets until it contacts the inner stop brackets. The shelf should slide smoothly into the brackets. If it binds, remove it and check the alignment of the shelf brackets. The shelf bracket mounting nuts might need to be loosened slightly to allow the brackets to align with the shelf. Retighten the nuts when the shelf brackets are properly aligned. 10. Using Table 7-6, verify that you have the correct locking bracket part number for the shelf type and position (front or rear) being installed. 11. Once the shelf is positioned within the shelf brackets, install both shelf locking brackets with KEP nuts on the middle mounting studs, as shown. Push each locking bracket against the shelf to seat it before tightening the nuts. Table 7-6 Horizontal Shelf Locking Bracket Part Numbers ------------------------------------------------------------ StorageWorks Shelf Type Front Shelf Locking Bracket Part No. Rear Shelf Locking Bracket Part No. ------------------------------------------------------------ BA350-Sx 74-46441-01 74-46439-01 BA350-Mx 74-46441-02 74-46439-02 BA350-Ex 74-46441-03 74-46439-01 ------------------------------------------------------------ 7-10 Installing StorageWorks Shelves Figure 7-4 Front Shelf Bracket Installation Installing StorageWorks Shelves 7-11 Figure 7-5 Rear Shelf Bracket Installation 7-12 Installing StorageWorks Shelves 7.7 Air Separation Panel Installation Once the cabinet's shelves are configured, the air separation panels must be installed. The front and rear air separation panels are identical parts, but they are positioned in different ways depending upon where in the cabinet they are installed. Install the air separation panels in both the front and rear of the cabinet as described in Sections 7.7.1 and 7.7.2. 7.7.1 Installing the Front Air Separation Panel The front air separation panel is required only if there is an open storage position above the upper-most shelf in the front of the cabinet. Install the front air separation panel as follows: 1. Install four U-nuts on the air separation panel, as shown in Figure 7-6. 2. Position the air separation panel just behind the front vertical cabinet rails. Position the panel as closely as possible to the top of the upper-most front cabinet shelf. 3. Fasten the air separation panel to the front vertical cabinet rails with four screws. Figure 7-6 Front Air Separation Panel Installation Installing StorageWorks Shelves 7-13 7.7.2 Installing the Rear Air Separation Panel The rear air separation panel is installed just above the upper-most shelf in the rear of the cabinet. If cable distribution unit (CDU) A is installed in this position, the air separation panel is installed against the front panel of CDU A. 7.7.2.1 Rear Air Separation Panel Installation--Opening Above the Upper-Most Shelf If the position just above the upper-most shelf is open, install the rear air separation panel as follows: 1. Install four U-nuts on the vertical cabinet rails, as shown in Figure 7-7. Figure 7-7 Rear Air Separation Panel Installation--Empty Shelf Position Above Upper-Most Shelf 2. Position the air separation panel against the four U-nuts. 3. Fasten the air separation panel to the rear vertical cabinet rails with four screws. 7.7.2.2 Rear Air Separation Panel Installation--CDU A Above the Upper-Most Shelf If CDU A is installed above the upper-most rear shelf, the rear air separation panel is installed against its front panel. If a redundant CDU is installed above CDU A, the air separation panel is still installed against the front panel of CDU A. Install the rear air separation panel as follows: 1. Support CDU A in position against the rear vertical cabinet rails while removing its mounting screws, as shown in Figure 7-8. 7-14 Installing StorageWorks Shelves Figure 7-8 Rear Air Separation Panel Installation--CDU A Installed Above Upper-Most Shelf 2. Position the air separation panel against the front panel of CDU A. 3. Fasten the air separation panel, along with CDU A, to the rear vertical cabinet rails with four screws. 4. Route the CDU's power cord up and over the air separation panel to the left. 7.8 Installing Exterior Cabinet Panels Once the cabinet rack space is configured as desired, the exterior cabinet panels can be installed. Refer to Figure 7-1 and reinstall the exterior cabinet panels as follows: 1. Position a side panel against the cabinet with the lip above the upper hanger clips just over the upper edge of the side of the cabinet. 2. Make sure that the entire surface of the side panel rests firmly against the side of the cabinet. 3. Allow the panel to slide downward, catching the two hanger clips as it moves. 4. Install the side panel bolts into the side panel through the holes in the top side rails of the cabinet. 5. Repeat steps 1 through 4 to install the other side panel. Installing StorageWorks Shelves 7-15 6. Locate the four inset nylon snap fasteners on the top cabinet rails. ------------------------------------------------------------ WARNING ------------------------------------------------------------ The top cover is heavy and awkward to lift. Installing it requires two people. Failure to use sufficient personnel can result in personnel injury or equipment damage. ------------------------------------------------------------ 7. Position the top cover over the cabinet. Position the cover as shown in Figure 7-1 such that the front end of the panel with the shorter overhang is oriented toward the rear of the cabinet. 8. Align the pins on the underside of the top cover with the inset nylon fasteners on the top cabinet rails. ------------------------------------------------------------ WARNING ------------------------------------------------------------ Be careful not to catch your fingers between the cabinet and the top panel when snapping the panel to the cabinet. ------------------------------------------------------------ 9. Lower the cover onto the cabinet and press it down, making sure the pins snap into the top panel fasteners. 10. If the cabinet was moved to access the side panels, place it in its original position. 7-16 Installing StorageWorks Shelves 8 ------------------------------------------------------------ Installing TZ8x7-Series Tape Drives This chapter describes the mounting and power cabling of TZ8x7-series tape drives in SW500-series cabinets. 8.1 General Installation Considerations The TZ8x7-series tape drive is mounted in the SW500 cabinet with one chassis rail, as shown in Figure 8-1. The chassis rail is attached to the cabinet's internal vertical rails, and it supports the TZ8x7-series tape drive from one side. Grooves machined into the side of the tape drive enclosure mate with flanges along the sides of the chassis rail, allowing the tape drive to be slid onto the chassis rail from the front of the cabinet. Once installed, the tape drive enclosure extends from the front to the rear of the SW500 cabinet. Two TZ8x7-series tape drives can be mounted side-by-side at a given vertical position in the cabinet. The chassis rail hardware is the same for both the left and right mounting positions. Only the orientation of the hardware differs between the two mounting positions. There is no mechanical connection between two tape drives mounted side-by-side in the cabinet. In situations where only one TZ8x7-series tape drive is being installed at a given vertical position in the cabinet, the tape drive must be installed in the right mounting position. This will ensure that the front panel of the tape drive mates with the correct opening in the tape bezel in the cabinet door. A filler panel in the tape bezel covers the left mounting position in this case. ------------------------------------------------------------ WARNING ------------------------------------------------------------ While working in the cabinet interior, ac power must be removed from cabinet components. Failure to do so may result in personal injury as a result of electric shock. ------------------------------------------------------------ Prior to performing any of the procedures in this chapter, remove ac power from cabinet components. If the cabinet is installed and operating, spin down all disk drives and halt all tape drives in the cabinet. Switch the circuit breaker on the front panel of the cabinet's CDU(s) to the (OFF) position. Installing TZ8x7-Series Tape Drives 8-1 Figure 8-1 TZ8x7-Series Tape Drive Installation 8.2 Accessing the Cabinet Rack Space TZ8x7-series tape drives can normally be installed without removing cabinet side panels. To route the cabling in configurations where access to the interior of the cabinet is limited, however, cabinet side panels may need to be removed. Sections and 8.8 present procedures for removing and replacing exterior cabinet panels. The front and rear cabinet doors are held closed by door locks mounted on each door. The locks are released by turning counterclockwise with a 5/32-inch hex wrench. Removing the Cabinet Side Panels As shown in Figure 8-2, there are three side panel hanger clips on each side of the cabinet. A matching set of hanger clips are attached to each side panel. Remove the side panels as follows: 8-2 Installing TZ8x7-Series Tape Drives Figure 8-2 Cabinet Side Panel Removal and Installation Installing TZ8x7-Series Tape Drives 8-3 1. Move the cabinet away from adjacent enclosures as necessary. 2. Loosen the top cover by pushing up on its front and rear edges until it snaps free of its fasteners. ------------------------------------------------------------ WARNING ------------------------------------------------------------ The top cover is heavy and awkward to lift. Removing it requires two people. Failure to use sufficient personnel may result in injury or equipment damage. ------------------------------------------------------------ 3. Using two people, lift the top cover from the cabinet and set it aside. 4. Remove the bolts attaching the side panels to the top side rails of the cabinet. 5. Grasp a panel along its front and rear edges and lift up until the hanger clips disengage. Lift the panel away from the cabinet. 6. Repeat the previous step to remove the other panel. 8.3 Chassis Rail Installation As shown in Figure 8-3, one end of the tape drive chassis rail is extendible using a sliding rail bracket, to allow the length of the chassis rail to be adjusted to fit the cabinet. Two round standoffs are used to locate the chassis rail along the vertical cabinet rails. The round standoffs are inserted into front and rear chassis rail locating holes to position the chassis rail while it is fastened to the cabinet. Chassis rail component assembly and installation procedures for both left and right tape drive mounting positions are presented in Sections 8.3.1, 8.3.2, and 8.3.3. ------------------------------------------------------------ Note ------------------------------------------------------------ Two small ESD grounding posts are provided with the cabinet. One is located on a front vertical cabinet rail, and one on a rear rail. Should an ESD grounding post interfere with the installation of the chassis rail, move the post out of the way to any free hole on the cabinet. ------------------------------------------------------------ 8.3.1 Chassis Rail Assembly Before the chassis rail components can be mounted in the cabinet, they must be assembled. Assemble the chassis rail components as follows (see Figure 8-3): 1. Position the rail bracket against the chassis rail, as shown in the illustration. 2. Fasten the rail bracket to the chassis rail with the unbeveled nut bar and four screws, as shown. Leave the screws loose enough to allow the rail bracket to be moved along the chassis rail. 3. Install a U-nut in the groove near the end of each of the beveled nut bars. The flat side of the U-nuts must be installed on the beveled side of the nut bar. 8-4 Installing TZ8x7-Series Tape Drives Figure 8-3 Chassis Rail Assembly 4. Install the beveled nut bars on the chassis rail and rail bracket, using the round standoffs to hold them in place. The beveled side of the nut bars must face the flanges on the chassis rail and rail bracket. The chassis rail assembly is now ready to be installed in the cabinet. 8.3.2 Right Position Chassis Rail Assembly Installation Install the chassis rail assembly in the right position within the cabinet as follows (see Figure 8-4): ------------------------------------------------------------ WARNING ------------------------------------------------------------ Cabinet rail edges may be sharp and can slice or abrade skin or cable insulation. ------------------------------------------------------------ 1. Turn the cabinet power off as described in Section 8.1. 2. Determine the correct tape drive mounting locations and corresponding cabinet rail mounting holes for the chassis rail assembly. Refer to Chapter 5 or 6 for this information. The tape mounting hole specified for each position is the chassis rail locating hole shown in Figure 8-4. Installing TZ8x7-Series Tape Drives 8-5 Figure 8-4 Right Position Chassis Rail Assembly Installation ------------------------------------------------------------ WARNING ------------------------------------------------------------ Use care in supporting the chassis rail assembly. It is heavy and awkward to position within the cabinet. If possible, use two people to support and position the chassis rail assembly. The chassis rail assembly may cause injury and equipment damage if dropped during installation. ------------------------------------------------------------ 8-6 Installing TZ8x7-Series Tape Drives ------------------------------------------------------------ Note ------------------------------------------------------------ To ensure proper alignment of the chassis rail assembly, use care to position the round standoffs in the correct front and rear chassis rail locating holes. ------------------------------------------------------------ 3. From the front of the cabinet, position the chassis rail assembly at the correct mounting holes, as shown. Ensure that the rail bracket is positioned toward the front of the cabinet, and that the arrow on the rail bracket points up. 4. Insert the rear round standoff into the rear chassis rail locating hole. 5. Support the chassis rail against the rear vertical cabinet rail and maintain the rear round standoff in its locating hole. Extend the rail bracket to insert the front round standoff into its correct front chassis rail locating hole. 6. Using the shelf bracket as a template, mark the four U-nut mounting holes on the inner flanges of both the front and rear vertical cabinet rails. Make sure to use the correct set of holes in the chassis rail. 7. Temporarily remove the chassis rail assembly and install four U-nuts along the inner flanges of the front and rear vertical cabinet rails at the holes marked in step 6. 8. Reposition the chassis rail assembly as directed in steps 3 through 5. 9. Fasten the chassis rail to the inner flanges of the front and rear vertical cabinet rails with four screws, as shown. 10. Fasten the rail bracket to the front vertical cabinet rail with its beveled nut bar and three screws, as shown. 11. Fasten the chassis rail to the rear vertical cabinet rail with its beveled nut bar and three screws, as shown. 12. Tighten the screws fastening the rail bracket to the chassis rail. 13. Install two U-nuts along the outer flange of the front vertical cabinet rail. Install one U-nut at the hole just above the front chassis rail locating hole and the other at the eighth hole below the locating hole. 8.3.3 Left Position Chassis Rail Assembly Installation ------------------------------------------------------------ Note ------------------------------------------------------------ Install the chassis rail assembly in the left mounting position only if a tape drive is also installed in the right position. The front cabinet door tape bezel openings are designed to allow a single tape drive to be installed only in the right position. ------------------------------------------------------------ Install the chassis rail assembly in the left position within the cabinet as follows (see Figure 8-5): ------------------------------------------------------------ WARNING ------------------------------------------------------------ Cabinet rail edges may be sharp and can slice or abrade skin or cable insulation. ------------------------------------------------------------ Installing TZ8x7-Series Tape Drives 8-7 1. Turn the cabinet power off as described in Section 8.1. 2. Determine the correct tape drive mounting locations and corresponding cabinet rail mounting holes for the chassis rail assembly. Refer to Chapter 5 or 6 for this information. The tape mounting hole specified for each position is the chassis rail locating hole shown in Figure 8-5. Figure 8-5 Left Position Chassis Rail Assembly Installation ------------------------------------------------------------ WARNING ------------------------------------------------------------ Use care in supporting the chassis rail assembly. It is heavy and awkward to position within the cabinet. If possible, use two persons to support and position the chassis rail assembly. The chassis rail assembly may cause injury and equipment damage if dropped during installation. ------------------------------------------------------------ 8-8 Installing TZ8x7-Series Tape Drives ------------------------------------------------------------ Note ------------------------------------------------------------ To ensure proper alignment of the chassis rail assembly, use care to position the round standoffs in the correct front and rear chassis rail locating holes. ------------------------------------------------------------ 3. From the rear of the cabinet, position the chassis rail assembly at the correct mounting holes, as shown. Ensure that the rail bracket is positioned toward the rear of the cabinet, and that the arrow on the rail bracket points up. 4. Insert the front round standoff into the front chassis rail locating hole. 5. Support the chassis rail assembly against the front vertical cabinet rail and maintain the front round standoff in its locating hole. Extend the rail bracket to insert the rear round standoff into its correct rear chassis rail locating hole. 6. Using the chassis rail as a template, mark the four U-nut mounting holes on the inner flanges of both the front and rear vertical cabinet rails. Make sure to use the correct set of holes in the chassis rail. 7. Temporarily remove the chassis rail assembly and install four U-nuts along the inner flanges of the front and rear vertical cabinet rails at the holes marked in step 6. 8. Reposition the chassis rail assembly as directed in steps 3 through 5. 9. Fasten the chassis rail assembly to the inner flanges of the front and rear vertical cabinet rails with four screws, as shown. 10. Fasten the rail bracket to the rear vertical cabinet rail with its beveled nut bar and three screws, as shown. 11. Fasten the chassis rail to the front vertical cabinet rail with its beveled nut bar and three screws, as shown. 12. Tighten the screws fastening the rail bracket to the chassis rail. 13. Install two U-nuts along the outer flange of the front vertical cabinet rail. Install one U-nut at the hole just above the front chassis rail locating hole and the other at the eighth hole below the locating hole. Installing TZ8x7-Series Tape Drives 8-9 8.4 Mounting the TZ8x7-Series Tape Drive Enclosure Once the chassis rail is installed in the cabinet, the tape drive enclosure can be mounted on it. Mount the TZ8x7-series tape drive to the chassis rail as follows: ------------------------------------------------------------ Note ------------------------------------------------------------ The lock down brackets are mirror images of each other, and they are identified as the -01 and -02 versions. They must be installed with the orientation shown in the illustration. ------------------------------------------------------------ 1. Install the the two lock down brackets on the side of the tape drive enclosure near the front end, as shown in either Figure 8-6 or 8-7. Figure 8-6 shows the installation for the right mounting position, and Figure 8-7 shows the installation for the left mounting position. 8-10 Installing TZ8x7-Series Tape Drives Figure 8-6 Right Position Tape Drive Mounting Installing TZ8x7-Series Tape Drives 8-11 Figure 8-7 Left Position Tape Drive Mounting ------------------------------------------------------------ WARNING ------------------------------------------------------------ Use two persons to lift the TZ8x7-series tape drive. The unit is heavy and awkward to lift. Failure to use two persons to lift the tape drive may result in injury or damage to equipment. ------------------------------------------------------------ 2. From the front of the cabinet and using two persons, position the tape drive such that the machined grooves in the side of the tape drive enclosure mate with the upper and lower edges of the chassis rail. ------------------------------------------------------------ CAUTION ------------------------------------------------------------ Use care when sliding the tape drive into the cabinet. Do not allow the tape drive enclosure to pull or pinch cables that may be routed through 8-12 Installing TZ8x7-Series Tape Drives the cabinet interior. Failure to use care when mounting the tape drive may result in equipment damage. ------------------------------------------------------------ 3. Slide the tape drive onto the chassis rail until the lockdown brackets contact the U-nuts on the front vertical cabinet rail. 4. Fasten the lock down brackets to the front vertical chassis rail with two hex cap screws, as shown in Figure 8-6 or 8-7. ------------------------------------------------------------ Note ------------------------------------------------------------ Preconfigured cabinets containing TZ8x7 tape drives are sent from the factory with red shipping brackets installed on the rear of the tape drives for stability. The shipping brackets may be left in place or removed at the user 's discretion. The brackets are not needed, nor are they supplied, with tape drives ordered to be installed on site. ------------------------------------------------------------ 8.5 Supplying AC Power AC power for the TZ8x7-series tape drive is obtained from CDU A. One of the cabinet's preinstalled shelf power cords is used to supply power to the tape drive. To use one of the preinstalled cabinet power cords, simply locate an unused cord next to the tape drive's rear-panel power receptacle and plug it into the receptacle. Switch the power switch on the rear panel of the tape drive to the j (ON) position to allow the CDU to control the unit's power. 8.6 SCSI-2 Signal Cabling Refer to the Storage Solutions TZ8x7-Series Tape Drive SCSI Bus Configuration and Installation Guide for details on the selection of SCSI-2 cables and their connection to the TZ8x7-series tape drive. 8.7 Installing the Cabinet Door Tape Bezel Kit To allow operator access to the TZ8x7 tape drive, the front cabinet door tape bezel kit must be installed. To install the tape bezel kit, see the Instructions for Installation of the Tape Bezel Kit on SF400 Series Cabinets provided with the kit. The SF400 installation instructions also apply to SW500-series cabinets. If the tape bezel kit is already installed, you need only remove its filler panel to accommodate a tape drive in the left mounting position. 8.8 Reinstalling Exterior Cabinet Panels Once the cabinet rack space is configured as desired, the exterior cabinet panels may be reinstalled. Refer to Figure 8-2 and reinstall the exterior cabinet panels as follows: 1. Position a side panel against the cabinet with the lip above the upper hanger clips just over the upper edge of the side of the cabinet. Installing TZ8x7-Series Tape Drives 8-13 Figure 8-8 TZ8x7-Series Tape Drive Rear Panel SCSI-2ðTx CONNECTORS ðTX AC POWERðTx SWITCHðTX AC RECEPTACLEðTX CXO-3932A-MCðTX N 7. Position the top cover over the cabinet. Position the cover as shown in Figure 8-2 such that the end of the panel with the shorter overhang is oriented toward the front of the cabinet. 8. Align the pins on the underside of the top cover with the inset nylon fasteners on the top cabinet rails. ------------------------------------------------------------ WARNING ------------------------------------------------------------ Be careful not to catch your fingers between the cabinet and the top panel when snapping the panel to the cabinet. ------------------------------------------------------------ 9. Lower the cover onto the cabinet and press it down, ensuring that the pins snap into the top panel fasteners. 10. If the cabinet was moved to access the side panels, place it in its original position. Installing TZ8x7-Series Tape Drives 8-15 9 ------------------------------------------------------------ Power Configuration This chapter discusses the configuration of primary power within SW500-series cabinets. Descriptions of the cabinet's power configuration options can be found in Section 2.3. 9.1 General Considerations ------------------------------------------------------------ WARNING ------------------------------------------------------------ While working in the cabinet interior, ac power must be removed from the cabinet components. Failure to do so may result in personal injury as a result of electric shock. ------------------------------------------------------------ Prior to performing any of the procedures in this chapter, remove ac power from the cabinet components. If the cabinet is installed and operating, spin down all disk drives and halt all tape drives in the cabinet. Switch the circuit breaker on the front panel of the cabinet's CDUs to the (OFF) position. 9.2 Cable Distribution Units The 887-E CDU is used with SW500-series cabinets and is designed for both 230 volt, 50 Hz and 120 volt, 60 Hz applications. The unit provides ac power to the cabinet's components via 12 Molex output connectors on its rear panel. Two International Electrotechnical Commission (IEC) output connectors are also provided for utility purposes. ------------------------------------------------------------ WARNING ------------------------------------------------------------ If the leakage current of the cabinet is above 3.5 mA after installation, Digital recommends that power cables with industrial type B, IEC 950 connectors be installed. Failure to reduce the leakage current can result in equipment performance degradation and personal injury due to electric shock. ------------------------------------------------------------ Table 9-1 lists the power cables used with the 887-E CDU. Power Configuration 9-1 Table 9-1 CDU Power Cable Variations ------------------------------------------------------------ Cable Part No.+ Country Usage Comments+ ------------------------------------------------------------ 17-01255-01 Europe, Japan IEC 309 plug and cordage (220/240 volt) 17-00083-57 United States NEMA 5-20P twist-lock plug (120 volt) ------------------------------------------------------------ +The SW500-AD cabinet version for Europe and Japan is shipped with the either the 17-01255-01 or 17-00083-57 power cable, depending upon customer requirements. The SW500-AC cabinet version for the United States is shipped with only the 17-00083-57 power cable. If a different cable is required, the customer must order it prior to installation. +All power cables are supplied with a female plug compatible with the IEC input connector on the front panel of the CDU. ------------------------------------------------------------ 9.3 Utility Power Cord Each SW500 cabinet is furnished with one additional power cord for the purpose of powering monitors, printers, or other devices. The power cord is connected to the rear panel of the CDU and may be found coiled up in the base of the cabinet. 9.4 Single CDU Configurations Using one CDU, cabinet power can be configured with both single and dual power supplies in each shelf. Refer to Sections 2.3.1 and 2.3.2 for further information on these configurations. 9.4.1 Single Cabinet Power Configuration Unless options are specified, SW500-series cabinets are shipped with a single CDU and single-shelf power supplies. For ease of upgrade, the cabinet is supplied with 10 black and 10 gray preinstalled ac power cords. One black and one gray power cord is routed to each usable front and rear shelf position. These cords are used to supply ac power to shelves as they are added to the cabinet. The black cord at each newly added shelf 's mounting position needs only to be plugged into the shelf 's power supply to complete the shelf 's installation. 9.4.2 Dual-Shelf Power Configuration In the dual-shelf power configuration, a second ac power supply is necessary for each shelf (refer to Figure 2-5). Configure each shelf for dual ac power supplies as follows: 1. Power the cabinet down as described in Section 9.1. 2. Plug in a second ac power supply (B) next to the existing ac power supply (A) in each shelf. 3. Plug the gray ac power cord at each shelf position into the connector on the newly added ac power supply. 4. Using the procedures appropriate to your system, turn on the cabinet and initialize it. 9-2 Power Configuration 9.5 Dual-Cabinet Power Configuration The dual-cabinet power configuration requires two CDUs for power distribution. The second CDU (CDU B) is installed immediately above CDU A in the rear of the cabinet. Install the dual power option kit as follows: 1. Check the contents of the dual power option kit against the parts list shown in Table 9-2 to verify that all the parts are present. Table 9-2 SW500 Cabinet Dual Power Option Kit Parts List ------------------------------------------------------------ Kit option numbers SW5xP-AC (120V, 60 Hz), SW5xP-AD (230V, 50 Hz) Quantity ------------------------------------------------------------ Digital Part Number Description -AC -AD ------------------------------------------------------------ EK-SW5CU-IG CDU and dual power option installation guide 1 1 90-00063-39 Screw, 10-32 Phillips, .500 inch 4 4 90-07786-00 U-nut, 10-32 4 4 30-32959-05 Cable distribution unit, 120/230V, 60/50 Hz 1 1 17-00083-57 Power cable, NEMA 5-20 twist-lock plug 1 - 17-01255-01 Power cable, IEC 309 plug - 1 90-07085-00 Cable clamp, .500 inch - 1 90-07089-00 Cable clamp, .750 inch 2 2 36-38274-01 Label, caution and cable ID 2 2 ------------------------------------------------------------ 2. See Figure 9-1 to familiarize yourself with the location and identification of each of the CDUs to be configured for the dual power option. 3. Spin down all disk drives and halt all tape drives in the cabinet. 4. Open the rear cabinet door to expose CDU A. 5. Switch the circuit breaker on the front panel of CDU A to the (OFF) position. 6. Disconnect CDU A's primary power cable from the power source. Power Configuration 9-3 Figure 9-1 CDU Installation 9-4 Power Configuration ------------------------------------------------------------ Note ------------------------------------------------------------ In some cases, it may be desirable to allow the host computer system to operate while the dual power option kit is being installed. In this instance, the cabinet may be isolated from power by disconnecting the host computer interface cables. Refer to the documentation for your host computer configuration for the steps necessary to disconnect the cables. ------------------------------------------------------------ 7. Isolate the cabinet electrically by powering down the host computer. 8. To install CDU B, you must have free access to the interior area of the cabinet. If necessary, gain access to the cabinet interior by separating the cabinet from adjacent ones and removing its side panels. Refer to Chapter 7 for details on exterior cabinet panels. ------------------------------------------------------------ WARNING ------------------------------------------------------------ Cabinet rail edges may be sharp and can slice or abrade skin and cable insulation. ------------------------------------------------------------ 9. Remove CDU B from its packing material. 10. Locate the 10 preinstalled gray power cords coiled in the interior of the cabinet. Bring the free end of each of the cords to the opening above CDU A. 11. Position CDU B at the opening above CDU A, as shown in Figure 9-1. 12. Plug the CDU plug of each gray cord into the rear panel of CDU B. The cords may be plugged in in any order. 13. Slide CDU B into position against the vertical cabinet rails. 14. Using the hardware provided in the kit, mount CDU B to the cabinet chassis rails, as shown in Figure 9-1. ------------------------------------------------------------ WARNING ------------------------------------------------------------ To prevent injury from electric shock, it is important that safety labels be properly applied. Confusion can result from the fact that the cabinet uses two primary power sources with the dual power option. Install the cable and cabinet labeling carefully in accordance with the instructions in steps 15 through 25. ------------------------------------------------------------ 15. Cut off one letter ``A'' from one of the yellow ``A'' labels in the kit. Remove the cut label from its backing paper and place it on the front panel of CDU A just to the left of the power receptacle. 16. Wrap the remainder of the cut ``A'' label around the primary power cable for CDU A as close to the CDU (female) end as possible, as shown in Figure 9-1. 17. Remove another of the yellow ``A'' labels in the kit from its backing paper and wrap it around the other (male) end of the primary power cable of CDU A, as shown in Figure 9-1. 18. Cut off one letter ``B'' from one of the yellow ``B'' labels in the kit. Remove the cut label from its backing paper and place it on the front panel of CDU B just to the left of the power receptacle. Power Configuration 9-5 19. Locate the primary power cable for CDU B in the kit. 20. Wrap the remainder of the cut ``B'' label around the primary power cable for CDU B as close to the CDU (female) end as possible, as shown in Figure 9-1. 21. Remove another of the yellow ``B'' labels in the kit from its backing paper and wrap it around the other end of the primary power cable of CDU B, as shown in Figure 9-1. 22. Install the primary power cable for CDU B into the cabinet, as shown in Figure 9-1. Follow the same routing and use the same cable ties or clamps as the existing primary power cable. 23. Plug the CDU B primary power cable into the receptacle on the front panel of CDU B, as shown in Figure 9-1. 24. Remove one of the two yellow "CAUTION" labels from its backing paper and place it on the left side of the rear air separation panel. 25. Remove the second yellow "CAUTION" label from its backing paper and place it on the left side of the front air separation panel. 26. Make sure that the redundant dc power supply required for the dual power option is installed in each shelf. (The redundant dc power supply is the right-hand one.) 27. Plug the gray power cord preinstalled next to each shelf position into the redundant dc power supply in each shelf. 28. If the cabinet's host computer interface cables were disconnected in step 7, reconnect the cables. 29. Replace the cabinet side panels and reposition the cabinet next to adjacent ones as appropriate. 30. Reconnect the primary power cable from CDU A to its source. 31. Connect the primary power cable from CDU B to the auxiliary power source. 32. Switch the circuit breakers on both CDUs to the j (ON) position. 33. Close and secure the cabinet doors. 34. Restart all disk and tape drives and check them for proper function. 9-6 Power Configuration ------------------------------------------------------------ StorageWorks Glossary ac distribution The method of distributing ac power in a cabinet. ac power supply A power supply designed to produce dc power from an ac input. adapter A device that converts the protocol and hardware interface of one bus type into that of another without changing the functionality of the bus. See signal converter. American National Standards Institute See ANSI. ANSI American National Standards Institute. An organization that develops and publishes electronic and mechanical standards. array controller A hardware/software device that facilitates communications between a host and one or more devices organized in an array. HS-family controllers are examples of array controllers. BA350-Mx controller shelf The StorageWorks controller shelf used for HS-family controller modules, cache modules, and shelf power units. BA350-Sx SBB shelf A StorageWorks shelf used for only power units and SBBs. bad block A disk drive data block containing a physical defect. bad block replacement See BBR. battery backup unit See BBU. BBR Bad block replacement. The substitution of defect-free disk blocks for those found to have defects. Glossary-1 BBU Battery backup unit. Extends power availability after the loss of primary ac power or a power supply to protect against the corruption or loss of data. block A stream of data transferred as a unit. (Used interchangeably with the term sector for disk drives.) blower An airflow device mounted in a StorageWorks shelf. cable distribution unit See CDU. carrier A standard, StorageWorks shelf-compatible, plastic shell into which a device can be installed. Sometimes called SBB carrier. CDU Cable distribution unit. The power entry device for StorageWorks cabinets. The unit provides the connections necessary to distribute ac power to cabinet shelves and fans. channel The RAID Array 110 subsystem term for a SCSI bus. CI bus Computer Interconnect bus. Uses two serial paths, each with a transfer rate of 70 Mb/s (8.75 MB/s). CLI Command line interpreter. Operator command line interface for the HS-family controller firmware. cold swap A method of device replacement that requires that power be removed from all shelves in a cabinet. This method is used when conditions preclude the use of the warm swap or hot swap methods. command line interpreter See CLI. controller A hardware/software device that facilitates communications between a host and one or more devices. A controller translates bus protocols and hardware interfaces and adds functionality to the host/device communications. controller shelf A StorageWorks shelf designed to contain controller and cache memory modules. DAT Digital Audio Tape. A format for recording digital data on a cartridge tape. Glossary-2 data center cabinet A generic reference to the large cabinets, such as the SW800 series, in which StorageWorks components can be mounted. deskside expansion unit A pedestal enclosure designed to house one or two StorageWorks shelves in a vertical position. Diagnostics and Utilities Protocol See DUP. digital audio tape See DAT. DIGITAL Storage Architecture See DSA. DIGITAL Storage System Interconnect See DSSI. DILX Disk inline exerciser. Diagnostic firmware used to test the data transfer capabilities of disk drives in a way that simulates a high level of user activity. Disk Inline Exerciser See DILX. DSA DIGITAL Stoage Architecture. A set of specifications and interfaces describing standards for designing mass storage products. DSA defines the functions performed by host computers, controllers, and drives. It also specifies how they interact to accomplish mass storage management. DSSI Digital Storage System Interconnect. A Digital-specific data bus with an 8-bit data transfer rate of 4 to 5 MB/s. dual cabinet power configuration A cabinet ac power configuration in which two ac sources and two ac power supplies are used to provide redundant dc power to each of the cabinet's SBB shelves. dual shelf power configuration A cabinet ac power configuration in which one ac source and two ac power supplies are used to provide redundant dc power to each of the cabinet's SBB shelves. dual universal asynchronous receiver transmitter See DUART. Glossary-3 dual-redundant configuration A controller configuration consisting of a primary and backup controller in one controller shelf . If the primary controller fails, the backup controller assumes control over the failing controller 's devices. DUART Dual Universal Asynchronous Receiver Transmitter. An integrated circuit containing two serial, asynchronous transceiver circuits. DUP Diagnostic and Utility Protocol. Host application software that allows a host operator terminal to connect to the controller 's command line interpreter. See also virtual terminal. ECC Error correction code. One or more cyclic redundancy check (CRC) words that allow detection of a mismatch between transmitted and received data in a communications system, or between stored and retrieved data in a storage system. The ECC allows for location and correction of an error in the received/retrieved data. All ECCs have limited correction power. EDC Error detection code. One or more checksum words that allow detection of a mismatch between transmitted and received data in a communications system, or between stored and retrieved data in a storage system. The EDC has no data correction capability. electromagnetic interference See EMI. electrostatic discharge See ESD. EMI Electromagnetic interference. The impairment of a signal by an electromagnetic disturbance. error correction code See ECC. error detection code See EDC. ESD Electrostatic discharge. The discharge of a potentially harmful static electric voltage as a result of improper grounding. failover Failover is the process that takes place when one controller in a dual-redundant configuration fails, and the other controller takes over the direction of the storage subsystem. The other controller continues to direct the storage subsystem until the failed controller becomes operational or is replaced. Glossary-4 fan An airflow device mounted in a StorageWorks cabinet. fast, differential SCSI See FD SCSI. fast, wide, differential SCSI See FWD SCSI. FD SCSI Fast, differential SCSI. The differential SCSI bus with an 8-bit data transfer rate of 10 MB/s. See also FWD SCSI and SCSI. field replaceable unit See FRU. filler panel A sheet metal or plastic panel used to cover unused mounting areas in StorageWorks cabinets and shelves. FRU field replaceable unit. A hardware component that can be replaced in the field. full-height device A single device that occupies an entire 5.25 inch SBB carrier. StorageWorks full-height devices have an order number suffix of ``-VA.'' FWD SCSI Fast, wide, differential SCSI. The differential SCSI bus with a 16-bit data transfer rate of up to 20 MB/s. See also FD SCSI and SCSI. half-height device A device that occupies half of a 5.25 inch SBB carrier. Two half-height devices can be mounted in a 5.25 inch SBB carrier. The first half-height device is normally mounted in the lower part of the carrier. The second device is normally mounted in the upper part of the carrier. HBVS Host-Based Volume Shadowing. Also known as Phase 2 Volume Shadowing. Hierarchical Storage Controller See HSC. Hierarchical Storage Operating Firmware See HSOF. HIS Host Interconnect Services. The firmware that communicates with the host in HS-family controllers. Glossary-5 host The primary or controlling computer to which a storage subsystem is attached. Host Interconnect Services See HIS. Host-Based Volume Shadowing See HBVS. hot swap A method of device replacement whereby the complete system remains on line and active during device removal and reinstallation. The device being removed or reinstalled is the only device that cannot perform operations during this process. HSC Hierarchical Storage Controller. An intelligent mass storage server used on the CI bus. Capable of supporting a total of eight disk and/or tape data channels, the HSC is part of the System Interconnect Architecture and Digital Storage Architecture. By performing as an I/O manager, the HSC can be classified as an I/O server, removing the burden of I/O management from the CPU. HSOF Hierarchical Storage Operating Firmware. HS-family controller firmware is contained on a removable ROM card. KILL line The controller-to-controller disable signal used in a dual-redundant configuration. least recently used See LRU. logical units A group of devices addressable as a virtual unit. LRU Least recently used. The block replacement algorithm for the read cache. maintenance terminal The operator terminal used to identify an HS-family controller, to enable its host paths, to define its subsystem configuration, and to check its status. The HS-family maintenance terminal interface is designed to accept any terminal conforming to EIA-423. The maintenance terminal is only required to configure a storage subsystem and is not required for normal operations. nonredundant A configuration in which there is no backup hardware in place for the hardware that is present. nonvolatile See NV. Glossary-6 NV Nonvolatile. A term used to describe memory, the contents of which survive loss of power. OCP Operator control panel. The control/indicator panel associated with a device. The OCP is usually mounted on the device and is accessible to the operator. operator control panel See OCP. port The hardware and software used to connect a host controller to a communication bus, such as a CI, SCSI, or SDI bus. qualified device A device that has been fully tested in all appropriate StorageWorks hardware and software configurations, and is in complete compliance with Digital and country-specific standards,for example, FCC and TÜV. quiesce To make a bus inactive or dormant. The operator must quiesce SCSI bus operations, for example, during a device warm swap. radio frequency interference See RFI. RAID Redundant array of independent disks. A set of storage techniques devised to increase the performance and availability of a storage subsystem. read cache A block of high-speed memory used by a controller to buffer data being read from storage devices by a host. A read cache increases the controller 's effective device access speed by satisfying host read requests from its local cache memory when possible, instead of from external storage devices. The controller maintains in the cache copies of data recently requested by the host, and may fetch blocks of data ahead in anticipation that the controller will access the next sequential blocks. In a normal read cache, host write requests are handled as usual, without involving the caching mechanism. See also write through cache. Redundant Array of Independent Disks See RAID. RFI Radio frequency interference. The impairment of a signal by an unwanted radio signal or radio disturbance. SBB StorageWorks building block. A device housed in a standard StorageWorks SBB carrier. An SBB has a standard physical and electrical interface that is compatible with those of StorageWorks shelves and enclosures. Glossary-7 SBB shelf StorageWorks building block shelf. A StorageWorks shelf, such as the BA350-Sx, designed to house plug-in SBB modules. SCS System Communication Services. A delivery protocol for packets of information (commands or data) to or from the host. SCSI Small Computer System Interface. An ANSI interface defining the physical and electrical parameters of a parallel I/O bus used to connect hosts to a maximum of seven devices. The StorageWorks device interface is implemented according to the SCSI-2 standard, allowing the synchronous transfer of 8-bit data at rates of up to 10 MB/s. shelf brackets Sheet metal components designed to attach and position StorageWorks shelves in their associated enclosures. signal converter A device that converts the protocol and hardware interface of one bus type into that of another without changing the functionality of the bus. See adapter. single cabinet power configuration A cabinet ac power configuration in which only one ac source and one ac power supply is used to supply dc power to the cabinet's SBB shelves. skirt A trim panel designed to mount around the base of the cabinet. Small Computer System Interface See SCSI. storage sets A grouping of disk drives that make up a new distinct container. StorageWorks Digital's family of modular data storage products that allows customers to design and configure their own storage subsystems. Components include power, packaging, cabling, devices, controllers, and software. Customers can integrate devices and array controllers in StorageWorks enclosures to form storage subsystems. StorageWorks building block See SBB. stripesets In a RAID configuration, a virtual disk drive with its physical data spread across multiple physical disks. Stripeset configurations do not include a data recovery mechanism. Glossary-8 supported device A device tested as functionally compatible with an approved StorageWorks hardware and software configuration. System Communications Services See SCS. Tape Inline Exerciser See TILX. TILX Tape Inline Exerciser. Diagnostic firmware used to test the data transfer capabilities of tape drives in a way that simulates a high level of user activity. VAXcluster System Console See VCS. VCS VAXcluster System Console. This terminal allows access to hosts (by networks). Another method of accessing the controller. See also DUP. virtual terminal A software path from an operator terminal on the host to the controller 's CLI interface. The path can be established via the host port on the controller (using DUP) or via the maintenance port through an intermediary host (VCS). A virtual terminal is also sometimes called a host console. warm swap A controller function that allows devices to be added, removed, or replaced while the subsystem remains operational. All activity on the device's SCSI bus must normally be halted for the duration of the warm swap operation. write through cache A technique for handling host write requests in read caches. When the host requests a write operation, the cache writes data directly to the external storage device and updates the cache memory to ensure that the memory does not contain obsolete data. This technique increases the chances that future host read requests can be filled from the cache. The host sees the write operation as complete only after the external storage device has been updated. See also read cache. write-back cache A cache configuration that increases the performance of host write requests. When the host requests a write operation, the cache writes the host's data first to the cache memory, completing the host's request quickly. It performs the slower operation of flushing the data to the external storage device at a later time. The host sees the write operation as complete when the data has reached the cache. Glossary-9 ------------------------------------------------------------ Index A ------------------------------------------------------------ Accessing cabinet rack space, 7-3 Air separation panels, 2-9, 7-1 in SW500 controller/storage cabinets, 6-4 in SW500 storage-only cabinets, 5-3 installation, 7-13 B ------------------------------------------------------------ Brackets screw-mounted shelf, 7-2 tab-mounted shelf, 7-2 C ------------------------------------------------------------ Cabinet cooling, 2-9 inspecting, 4-9 leveling, 4-6, 4-8 placement of, 4-7 powering, 4-10 ramp unloading procedures, 4-4 site preparation, 3-1 unloading, 4-4 unpacking, 4-1 Cabinet access, 7-3 Cabinet components, 2-4 cabinet, 2-4 CDUs, 2-4 controller shelves, 2-4 SBB shelves, 2-4 SBBs, 2-4 shelf brackets, 2-4 TZ8x7-series tape drives, 2-6 Cabinet preparation and shutdown, 7-3 Cable distribution units power cables used, 9-1 type used, 9-1 Cable routing, general in SW500 controller/storage cabinets, 6-9 in SW500 storage-only cabinets, 5-4 CI bulkhead, 6-5, 6-7 Cooling, cabinet, 2-9 D ------------------------------------------------------------ Description, of SW500 cabinet, 2-1 E ------------------------------------------------------------ Environmental stabilization, 4-1 ESD grounding posts, 7-9 Exterior panels reinstalling, 7-15, 8-13 removing, 7-3 F ------------------------------------------------------------ Filler panels, 2-9 in SW500 controller/storage cabinets, 6-4 in SW500 storage-only cabinets, 5-3 G ------------------------------------------------------------ Grounding posts, 7-9 Grounding, equipment, 3-2 H ------------------------------------------------------------ Host SCSI-2 signal cable routing in SW500 controller/storage cabinets, 6-7, 6-8 Host-to-controller CI cable routing in SW500 controller/storage cabinets, 6-5, 6-7 How to use this manual, 1-1 I ------------------------------------------------------------ Inspection of cabinet installation, 4-9 of ramps, 4-4 of shipped equipment, 4-1 Installing base trim kit, 4-8 StorageWorks shelves, 7-1 TZ8x7-series tape drives, 8-1 Internal CI cable routing, 6-5 Index-1 L ------------------------------------------------------------ Leveling, cabinet, 4-8 O ------------------------------------------------------------ Overview, 2-1 P ------------------------------------------------------------ Placement, of cabinet, 4-7 Power configuration of SW500 controller/storage cabinets, 6-5 of SW500 storage-only cabinets, 5-4 Power configurations, 2-7, 9-1 dual shelf power configuration, 2-8 dual-cabinet power configuration, 2-9, 9-3 dual-shelf power configuration, 9-2 single cabinet power configuration, 9-2 single-cabinet power configuration, 2-7 Power receptacles, site, 3-1 Power system survey, 3-3 Powering up, cabinet, 4-10 R ------------------------------------------------------------ Ramps inspection, 4-4 unloading, 4-4 Removal, cabinet from pallet, 4-4 Removing exterior cabinet panels, 7-3 top cover, 7-3 S ------------------------------------------------------------ Screw-mounted shelf brackets, 7-2 SCSI-2 cable lengths in SW500 controller/storage cabinets, 6-9 SCSI-2 cable routing in SW500 controller/storage cabinets, 6-9 in SW500 storage-only cabinets, 5-4 Shelf bracket kits description, 7-1 parts list, 7-2 screw-mounted, 7-1 screw-mounted configurations, 7-2 tab-mounted, 7-1 tab-mounted configurations, 7-3 Shelf bracket types, 7-2 Shelf locations in SW500 controller/storage cabinets, 6-2, 6-3 in SW500 storage-only cabinets, 5-1, 5-2 Shelf SCSI-2 cable selection and connection in SW500 controller/storage cabinets, 6-9 in SW500 storage-only cabinets, 5-4 Shelves, StorageWorks installation of, 7-1, 7-5 Shutdown of devices and power, 7-3 Side panels reinstalling, 7-15, 8-13 removal, 8-2 removing, 7-3, 8-2 Signal cable routing in SW500 controller/storage cabinets, 6-5 in SW500 storage-only cabinets, 5-4 Site preparation, 3-1 Specifications environmental stabilization, 4-1 SW500 cabinet, 2-1 Stabilization, thermal, 4-1 SW500 controller/storage cabinets cable routing, general, in, 6-9 configuration of, 6-1 host CI signal cable routing in, 6-5 host SCSI-2 signal cable routing in, 6-7, 6-8 host-to-controller CI cable routing in, 6-7 power configuration of, 6-5 SCSI-2 cable lengths in, 6-9 SCSI-2 cable routing in, 6-9 shelf locations in, 6-2, 6-3 TZ8x7-series tape drive locations in, 6-3 SW500 storage-only cabinets cable routing, general, in, 5-4 configuration of, 5-1 power configuration of, 5-4 SCSI-2 cable routing in, 5-4 shelf locations in, 5-1, 5-2 signal cable routing in, 5-4 TZ8x7-series tape drive locations in, 5-2 T ------------------------------------------------------------ Tab-mounted shelf brackets, 7-2 Thermal stabilization, 4-2 Top cover removing, 7-3 Trim kit, installing, 4-8 TZ8x7-series tape drives chassis rail, 8-1 chassis rail installation, 8-4 installation of, 8-1 locations in SW500 controller/storage cabinets, 6-3 locations in SW500 storage-only cabinets, 5-2 power cord installation, 8-13 SCSI-2 signal cabling, 8-13 tape bezel, 8-1 tape bezel kit installation, 8-13 tape drive enclosure mounting, 8-10 Index-2 U ------------------------------------------------------------ Unloading, cabinet, 4-4 Unpacking, cabinet, 4-1 Index-3